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Mantenir-se junts durant 16 anys, lluitar per davant per al somni http://ca.zhengdapipe.com/uploads/202133181/n202108171609331582276.jpg http://ca.zhengdapipe.com/news/what-are-the-surface-treatment-methods-of-spir-45100534.html Quins són els mètodes de tractament superficial de la canonada d'acer espiral? http://ca.zhengdapipe.com/uploads/202133181/n202104151112018203294.jpg http://ca.zhengdapipe.com/news/what-are-the-precautions-for-hot-processing-of-45112984.html Quines són les precaucions per al processament en calent de canonades d'acer espiral? http://ca.zhengdapipe.com/uploads/202133181/n202104151112189610971.jpg http://ca.zhengdapipe.com/news/what-is-the-principle-of-liquid-flow-in-spiral-45100675.html Quin és el principi del flux de líquid en tubs d'acer en espiral? http://ca.zhengdapipe.com/uploads/202133181/n202104151112379334690.jpg http://ca.zhengdapipe.com/news/what-are-the-classifications-of-galvanized-pip-45100836.html Quines són les classificacions de canonades 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Resolució de qualitat de tubs d'acer en espiral de pont http://ca.zhengdapipe.com/uploads/33181/info/n20240428102515e9f44.jpg http://ca.zhengdapipe.com/info/classification-of-welding-steel-pipes-95170257.html Classificació de canonades d'acer de soldadura http://ca.zhengdapipe.com/uploads/33181/info/n20240428101956c02d3.jpg http://ca.zhengdapipe.com/info/introduction-to-welding-steel-pipes-95170521.html Introducció a la soldadura de canonades d'acer http://ca.zhengdapipe.com/uploads/33181/info/n202404281010135c9ae.jpg http://ca.zhengdapipe.com/info/introduction-to-welding-steel-pipes-95170266.html Introducció a la soldadura de canonades d'acer http://ca.zhengdapipe.com/uploads/33181/info/n202404281005300328e.jpg http://ca.zhengdapipe.com/info/knowledge-of-the-pipe-diameter-of-the-spiral-t-95170241.html Coneixement del diàmetre de la canonada del tub espiral http://ca.zhengdapipe.com/uploads/33181/info/n202404280957145312a.jpg 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d'acer espiral fluids com aconseguir l'estalvi d'energia http://ca.zhengdapipe.com/uploads/33181/info/n20240429084845e009c.jpg http://ca.zhengdapipe.com/info/what-should-i-pay-attention-to-when-the-spiral-95309072.html A què he de prestar atenció quan s'ha d'utilitzar la canonada d'acer espiral? http://ca.zhengdapipe.com/uploads/33181/info/n202404300932451fcb1.jpg http://ca.zhengdapipe.com/info/what-do-you-need-to-pay-attention-to-when-the-95309070.html A què cal parar atenció quan es produeixen tubs d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n2024043009275662fd8.jpg http://ca.zhengdapipe.com/info/what-can-determine-the-quality-of-large-calib-95309069.html Què pot determinar la qualitat de les canonades d'acer en espiral de gran calibre http://ca.zhengdapipe.com/uploads/33181/info/n20240430092250316b3.jpg http://ca.zhengdapipe.com/info/spiral-steel-tube-spiral-welding-pipe-95309078.html Tub d'acer espiral de soldadura en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240430090129e6691.jpg http://ca.zhengdapipe.com/info/how-to-distinguish-the-quality-of-bridge-spira-95309068.html Com distingir la qualitat dels tubs d'acer en espiral del pont http://ca.zhengdapipe.com/uploads/33181/info/n202404300852108e8d8.jpg http://ca.zhengdapipe.com/info/analyze-the-cause-of-abrasion-resistance-of-ga-95309080.html Analitzar la causa de la resistència a l'abrasió de la canonada d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n202405010928382347d.jpg http://ca.zhengdapipe.com/info/galvanized-steel-pipe-acid-washing-and-passiva-95309076.html Rentat i passivació àcid de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n2024050109233733c2b.jpg http://ca.zhengdapipe.com/info/good-galvanized-steel-pipe-quality-treatment-95309084.html Bon tractament de qualitat de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n20240501091902f3561.jpg http://ca.zhengdapipe.com/info/analyze-the-cause-of-abrasion-resistance-of-ga-95309075.html Analitzar la causa de la resistència a l'abrasió de la canonada d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n202405010909270fd77.jpg http://ca.zhengdapipe.com/info/classification-and-production-process-of-galva-95309073.html Classificació i procés de producció de canonades galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n2024050109015163c37.jpg http://ca.zhengdapipe.com/info/classification-and-safety-management-of-spiral-95309085.html Classificació i gestió de la seguretat dels tubs espirals http://ca.zhengdapipe.com/uploads/33181/info/n20240502085158a5235.jpg http://ca.zhengdapipe.com/info/when-dealing-with-spiral-steel-pipes-pay-atte-95309097.html Quan tracteu tubs d'acer en espiral, presteu atenció a evitar aquests defectes http://ca.zhengdapipe.com/uploads/33181/info/n2024050208464345f78.jpg http://ca.zhengdapipe.com/info/how-to-distinguish-the-rust-and-rust-of-the-sp-95309081.html Com distingir l'òxid i l'òxid de la canonada d'acer espiral http://ca.zhengdapipe.com/uploads/33181/info/n202405020839436ebef.jpg http://ca.zhengdapipe.com/info/ultrasonic-detection-of-spiral-steel-pipes-95309094.html Detecció per ultrasons de tubs d'acer espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240502083545afbeb.jpg http://ca.zhengdapipe.com/info/structural-attributes-of-galvanized-steel-pipe-95309079.html Atributs estructurals de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n2024050208304439779.jpg http://ca.zhengdapipe.com/info/how-to-transport-fluid-spiral-steel-pipes-how-95309086.html Com transportar tubs d'acer en espiral fluid com aconseguir l'estalvi d'energia http://ca.zhengdapipe.com/uploads/33181/info/n20240503090956d2f38.jpg http://ca.zhengdapipe.com/info/the-technical-characteristics-of-the-spiral-st-95309089.html Les característiques 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laminat en calent http://ca.zhengdapipe.com/uploads/33181/info/n20240507143256827d4.jpg http://ca.zhengdapipe.com/info/the-anticorrosive-process-determines-the-servi-96649951.html El procés anticorrosiu determina la vida útil de la canonada d'acer anticorrosió http://ca.zhengdapipe.com/uploads/33181/info/n202405071422105bcde.jpg http://ca.zhengdapipe.com/info/what-is-the-anticorrosive-technology-of-3pe-an-96649949.html Quina és la tecnologia anticorrosiva de la canonada d'acer anticorrosiva 3PE? http://ca.zhengdapipe.com/uploads/33181/info/n20240507120007e8908.jpg http://ca.zhengdapipe.com/info/testing-method-of-small-diameter-spiral-steel-96648553.html Mètode de prova de tub d'acer espiral de petit diàmetre http://ca.zhengdapipe.com/uploads/33181/info/n20240507114458b95e1.jpg http://ca.zhengdapipe.com/info/thermal-treatment-defects-and-prevention-of-st-96648552.html Tractament tèrmic de defectes i prevenció de canonades d'acer 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http://ca.zhengdapipe.com/uploads/33181/info/n20240508094030b62fa.jpg http://ca.zhengdapipe.com/info/the-technical-characteristics-of-the-spiral-st-96649954.html Les característiques tècniques de la canonada d'acer espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240508093605f1bae.jpg http://ca.zhengdapipe.com/info/why-does-the-steel-pipe-be-treated-with-heat-96649965.html Per què la canonada d'acer es tracta amb calor? http://ca.zhengdapipe.com/uploads/33181/info/n202405091102262ca4e.jpg http://ca.zhengdapipe.com/info/do-you-know-the-characteristics-of-plastic-ste-96649961.html Coneixes les característiques de les canonades d'acer de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202405090928350fef3.jpg http://ca.zhengdapipe.com/info/the-effect-of-anticorrosion-and-insulation-of-96649956.html L'efecte de la anticorrosió i l'aïllament de la canonada d'aïllament http://ca.zhengdapipe.com/uploads/33181/info/n20240509091810e1b9b.jpg http://ca.zhengdapipe.com/info/the-advantages-and-disadvantages-of-hot-rolle-96649959.html Els avantatges i els desavantatges de les canonades d'acer sense soldadura laminades en calent http://ca.zhengdapipe.com/uploads/33181/info/n202405090908289715d.jpg http://ca.zhengdapipe.com/info/how-to-distinguish-3pe-anti-corrosion-steel-p-96649976.html Com distingir les canonades d'acer anticorrosió 3PE i les canonades de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n20240509084635577a3.jpg http://ca.zhengdapipe.com/info/the-purpose-and-production-process-of-the-spir-96649970.html El propòsit i el procés de producció del tub espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240510085654bb7e1.jpg http://ca.zhengdapipe.com/info/3pe-anti-corrosion-steel-pipe-introduction-in-96649958.html Introducció al tub d'acer anticorrosió 3PE http://ca.zhengdapipe.com/uploads/33181/info/n20240510085122700bf.jpg http://ca.zhengdapipe.com/info/the-difference-between-hot-rolled-steel-pipe-96649960.html La diferència entre el tub d'acer laminat en calent i el tub d'acer laminat en fred http://ca.zhengdapipe.com/uploads/33181/info/n202405100847123016e.jpg http://ca.zhengdapipe.com/info/the-processing-method-of-spiral-tube-surface-d-96649955.html El mètode de processament de la descarburació superficial del tub espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240510084246235d1.jpg http://ca.zhengdapipe.com/info/welding-process-of-galvanized-steel-pipe-96649979.html Procés de soldadura de tubs d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n202405100838508d2d0.jpg http://ca.zhengdapipe.com/info/what-are-the-surface-requirements-of-the-spira-96649968.html Quins són els requisits de superfície de la canonada d'acer espiral Quins són els requisits de superfície de la canonada d'acer espiral http://ca.zhengdapipe.com/uploads/33181/info/n2024051109502805123.jpg http://ca.zhengdapipe.com/info/the-method-of-forming-the-spiral-tube-and-the-96649972.html El mètode de formació del tub espiral i la causa de la formació de defectes de costura http://ca.zhengdapipe.com/uploads/33181/info/n20240511094410513d0.jpg http://ca.zhengdapipe.com/info/introduction-to-the-production-process-of-spir-96649962.html Introducció al procés de producció de tubs espirals http://ca.zhengdapipe.com/uploads/33181/info/n2024051108430839f92.jpg http://ca.zhengdapipe.com/info/introduction-to-the-difference-between-ordinar-96649977.html Introducció a la diferència entre tubs d'acer normals i tubs espirals http://ca.zhengdapipe.com/uploads/33181/info/n2024051108372275737.jpg http://ca.zhengdapipe.com/info/factors-of-spiral-tube-corrosion-96649964.html Factors de corrosió del tub espiral http://ca.zhengdapipe.com/uploads/33181/info/n202405110832198acb8.jpg http://ca.zhengdapipe.com/info/the-manufacturing-process-of-the-grilly-steel-96649963.html El procés de fabricació del tub 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http://ca.zhengdapipe.com/info/what-are-the-advantages-of-3pe-anticorrosive-s-96649966.html Quins són els avantatges de la canonada d'acer anticorrosiva 3PE http://ca.zhengdapipe.com/uploads/33181/info/n2024051308275979f24.jpg http://ca.zhengdapipe.com/info/causes-of-anticorrosive-steel-pipes-have-good-96649978.html Les causes dels tubs d'acer anticorrosius tenen bones propietats anticorrosives http://ca.zhengdapipe.com/uploads/33181/info/n20240514151250b80ec.jpg http://ca.zhengdapipe.com/info/check-what-processes-of-coating-steel-pipes-96650014.html Comproveu quins són els processos de recobriment de canonades d'acer http://ca.zhengdapipe.com/uploads/33181/info/n20240514145059fe123.jpg http://ca.zhengdapipe.com/info/steel-number-identification-method-of-large-d-96649981.html Mètode d'identificació del nombre d'acer del tub espiral de gran diàmetre http://ca.zhengdapipe.com/uploads/33181/info/n20240514144622ec6bc.jpg 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http://ca.zhengdapipe.com/info/dalvation-steel-pipe-heating-furnace-heating-o-96650040.html Defecte i control d'oxidació de calefacció del forn de calefacció de tubs d'acer de Dalvation http://ca.zhengdapipe.com/uploads/33181/info/n20240527153152b4aef.jpg http://ca.zhengdapipe.com/info/what-should-i-pay-attention-to-when-the-constr-96650037.html A què he de prestar atenció quan s'ha de prestar atenció a la soldadura de construcció de canonades galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n2024052715270777ee5.jpg http://ca.zhengdapipe.com/info/welding-technology-used-in-straight-seam-weldi-96650039.html Tecnologia de soldadura utilitzada en canonades d'acer de soldadura de costura recta http://ca.zhengdapipe.com/uploads/33181/info/n202405271454003b037.jpg http://ca.zhengdapipe.com/info/the-method-of-direct-sewing-steel-pipe-treats-96650060.html El mètode de costura directa de canonades d'acer tracta el tractament tèrmic 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http://ca.zhengdapipe.com/uploads/33181/info/n2024052809021541c67.jpg http://ca.zhengdapipe.com/info/spiral-tube-requirements-for-steel-pipe-surfac-96650031.html Requisits del tub espiral per als requisits de la superfície del tub d'acer http://ca.zhengdapipe.com/uploads/33181/info/n20240528085628fe07c.jpg http://ca.zhengdapipe.com/info/production-introduction-of-thick-wall-spiral-t-96650026.html Introducció a la producció de tubs espirals de paret gruixuda http://ca.zhengdapipe.com/uploads/33181/info/n20240528085217ef3d7.jpg http://ca.zhengdapipe.com/info/production-process-of-spiral-steel-pipes-96650068.html Procés de producció de tubs d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240529094818c8627.jpg http://ca.zhengdapipe.com/info/introduction-of-the-advantages-and-disadvantag-96650052.html Introducció dels avantatges i desavantatges de les canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240529093906cfba0.jpg 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http://ca.zhengdapipe.com/info/the-shortcomings-that-are-prone-to-hot-rolled-96651531.html Les deficiències que són propenses a les canonades d'acer laminats en calent http://ca.zhengdapipe.com/uploads/33181/info/n2024053010221891301.jpg http://ca.zhengdapipe.com/info/common-high-frequency-straight-seam-steel-pip-96650071.html Tubs d'acer de costura recta d'alta freqüència comuns i processos de producció de canonades d'acer de costura recta de soldadura per arc enterrat http://ca.zhengdapipe.com/uploads/33181/info/n20240530101637e348c.jpg http://ca.zhengdapipe.com/info/introduction-to-the-production-process-of-pile-96650056.html Introducció al procés de producció de canonades d'acer de costura recta de pila http://ca.zhengdapipe.com/uploads/33181/info/n2024053009581540929.jpg http://ca.zhengdapipe.com/info/what-should-i-pay-attention-to-when-purchasing-96650058.html A què he de prestar atenció a l'hora de comprar una canonada d'acer de gran calibre 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http://ca.zhengdapipe.com/info/testing-method-of-small-diameter-spiral-steel-96869328.html Mètode de prova de tubs d'acer espiral de petit diàmetre http://ca.zhengdapipe.com/uploads/33181/info/n20240606101354a4e15.jpg http://ca.zhengdapipe.com/info/steel-number-identification-method-of-large-d-96869336.html Mètode d'identificació del nombre d'acer del tub espiral de gran diàmetre http://ca.zhengdapipe.com/uploads/33181/info/n202406061009107840f.jpg http://ca.zhengdapipe.com/info/weld-quality-judgment-of-the-spiral-tube-96869338.html Judici de qualitat de soldadura del tub espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240606094228445e7.jpg http://ca.zhengdapipe.com/info/the-connection-method-of-three-spiral-steel-pi-96869332.html El mètode de connexió de tres tubs d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240606093725fd09e.jpg http://ca.zhengdapipe.com/info/steel-shear-is-commonly-used-96869326.html La cisalla d'acer s'utilitza habitualment 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http://ca.zhengdapipe.com/info/requirements-for-square-tube-welding-technical-97111438.html Requisits per als requisits tècnics de soldadura de tubs quadrats http://ca.zhengdapipe.com/uploads/33181/info/n20240624104328e54d1.jpg http://ca.zhengdapipe.com/info/anticorrosive-treatment-of-galvanized-pipes-97111679.html Tractament anticorrosiu de canonades galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n20240624103520efdd6.jpg http://ca.zhengdapipe.com/info/test-before-the-spiral-steel-pipe-out-of-the-f-97112367.html Prova abans que el tub d'acer espiral surti de la fàbrica http://ca.zhengdapipe.com/uploads/33181/info/n2024062410263698de3.jpg http://ca.zhengdapipe.com/info/what-are-the-measures-for-the-production-of-th-97111202.html Quines són les mesures per a la producció de tubs espirals de paret gruixuda? http://ca.zhengdapipe.com/uploads/33181/info/n2024062409460036264.jpg http://ca.zhengdapipe.com/info/advantages-of-steel-pipe-structure-97111178.html Avantatges de 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Línia de tractament tèrmic de tub rodó galvanitzat de Dalvation Balances d'eliminació d'aigua a alta pressió http://ca.zhengdapipe.com/uploads/33181/info/n20240630153226e99cf.jpg http://ca.zhengdapipe.com/info/dalvation-galvanized-round-tube-heating-furna-97260696.html Defecte d'oxidació i control del forn de calefacció de tub rodó galvanitzat per dalvació http://ca.zhengdapipe.com/uploads/33181/info/n20240630152805ead6d.png http://ca.zhengdapipe.com/info/hardness-detection-method-of-seamless-steel-pi-97260947.html Mètode de detecció de duresa de canonades d'acer sense soldadura http://ca.zhengdapipe.com/uploads/33181/info/n202406301521043f4ff.jpg http://ca.zhengdapipe.com/info/how-to-extend-the-life-of-seamless-square-tube-97261142.html Com allargar la vida útil dels tubs quadrats sense costures https://img01.v15cdn.com/gallery/4x3/142.webp http://ca.zhengdapipe.com/info/application-processing-method-of-seamless-stee-97260681.html Mètode de processament d'aplicació de canonades d'acer 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http://ca.zhengdapipe.com/info/do-you-know-the-advantages-and-disadvantages-o-97314134.html Coneixes els avantatges i els inconvenients del tub de cosir recte? http://ca.zhengdapipe.com/uploads/33181/info/n202407030854318d0e0.png http://ca.zhengdapipe.com/info/3pe-anti-corrosion-steel-pipe-s-performance-a-97314127.html Avantatge de rendiment de la canonada d'acer anticorrosió 3PE http://ca.zhengdapipe.com/uploads/33181/info/n20240703084756bc854.jpg http://ca.zhengdapipe.com/info/epoxy-powder-anti-corrosion-steel-pipe-manufa-97314136.html Procés de fabricació de canonades d'acer anticorrosió de pols epoxi http://ca.zhengdapipe.com/uploads/33181/info/n2024070308371268aa9.jpg http://ca.zhengdapipe.com/info/standard-and-basic-use-of-spiral-tube-material-97560414.html Ús estàndard i bàsic de material de tub espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240705150625b92fc.jpg http://ca.zhengdapipe.com/info/features-of-spiral-tubes-97560411.html Característiques dels tubs espirals http://ca.zhengdapipe.com/uploads/33181/info/n20240705150051c1d72.jpg http://ca.zhengdapipe.com/info/what-you-need-to-pay-attention-to-in-the-produ-97560426.html Què cal parar atenció en el procés de producció de tubs quadrats http://ca.zhengdapipe.com/uploads/33181/info/n202407051455234022c.jpg http://ca.zhengdapipe.com/info/the-production-process-of-square-pipe-tube-97560427.html El procés de producció de tubs quadrats http://ca.zhengdapipe.com/uploads/33181/info/n20240705144930a2f35.jpg http://ca.zhengdapipe.com/info/galvanized-pipe-production-process-step-follo-97560410.html Procés de producció de canonades galvanitzades: procés de processament de seguiment http://ca.zhengdapipe.com/uploads/33181/info/n20240705143833280ec.jpg http://ca.zhengdapipe.com/info/the-main-process-characteristics-of-the-spiral-97560429.html Les principals característiques del procés del tub espiral i l'efecte del tractament tèrmic http://ca.zhengdapipe.com/uploads/33181/info/n2024070711070712e9d.jpg http://ca.zhengdapipe.com/info/what-do-you-need-to-pay-attention-to-when-buyi-97560413.html A què cal parar atenció a l'hora de comprar canonades quadrades galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n20240707105949f7102.jpg http://ca.zhengdapipe.com/info/dalvation-square-tube-refined-defect-and-its-p-97560420.html Dalvation tub quadrat defecte refinat i la seva prevenció http://ca.zhengdapipe.com/uploads/33181/info/n20240707104322d6563.jpg http://ca.zhengdapipe.com/info/promoting-method-of-square-tube-welding-proces-97560412.html Foment del mètode de procés de soldadura de tubs quadrats http://ca.zhengdapipe.com/uploads/33181/info/n202407071028009002b.jpg http://ca.zhengdapipe.com/info/the-maintenance-skills-of-hot-dip-galvanized-97560423.html Les habilitats de manteniment de canonades d'acer galvanitzat en calent http://ca.zhengdapipe.com/uploads/33181/info/n20240707101427fe9c1.jpg http://ca.zhengdapipe.com/info/testing-of-spiral-steel-pipes-97560417.html Assajos de tubs d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240709145731eda84.jpg http://ca.zhengdapipe.com/info/production-material-for-spiral-steel-pipes-97560419.html Material de producció per a canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n202407091453505d8fc.jpg http://ca.zhengdapipe.com/info/heating-performance-of-hot-dip-galvanized-rou-97560415.html Rendiment de calefacció del tub rodó galvanitzat en calent http://ca.zhengdapipe.com/uploads/33181/info/n20240709145017514e3.jpg http://ca.zhengdapipe.com/info/seven-matters-that-should-be-paid-attention-to-97560418.html Set qüestions que cal prestar atenció en la producció de tubs quadrats http://ca.zhengdapipe.com/uploads/33181/info/n202407091445259c10f.jpg http://ca.zhengdapipe.com/info/dip-grid-process-of-galvanized-band-square-tu-97560416.html Procés d'immersió de reixeta de tub quadrat de banda galvanitzada http://ca.zhengdapipe.com/uploads/33181/info/n202407091432279750c.jpg http://ca.zhengdapipe.com/info/the-difference-between-straight-seam-steel-pip-97560424.html La diferència entre les canonades d'acer de costura recta i les canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240710101136fc18c.jpg http://ca.zhengdapipe.com/info/what-factors-will-affect-the-outer-diameter-ac-97560422.html Quins factors afectaran la precisió del diàmetre exterior del tub de to laminat en calent? http://ca.zhengdapipe.com/uploads/33181/info/n20240710100330dae73.jpg http://ca.zhengdapipe.com/info/the-precautions-of-the-spiral-steel-pipe-durin-97560430.html Les precaucions de la canonada d'acer espiral durant la soldadura http://ca.zhengdapipe.com/uploads/33181/info/n202407100950587ae16.jpg http://ca.zhengdapipe.com/info/welding-temperature-control-of-the-spiral-tube-97560421.html Control de la temperatura de soldadura del tub espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240710091309d9965.jpg http://ca.zhengdapipe.com/info/the-production-process-of-the-square-tube-97560428.html El procés de producció del tub quadrat http://ca.zhengdapipe.com/uploads/33181/info/n20240710090742ebdd5.jpg http://ca.zhengdapipe.com/info/is-the-galvanized-pipe-buried-land-as-anticorr-97595556.html La canonada galvanitzada és terra soterrada com a anticorrosiva? http://ca.zhengdapipe.com/uploads/33181/info/n2024071110512639559.jpg http://ca.zhengdapipe.com/info/reasons-for-a-wide-range-of-applicable-scope-o-97596932.html Raons per a una àmplia gamma d'abast aplicable de canonades de costura rectes http://ca.zhengdapipe.com/uploads/33181/info/n20240711104551c47cb.webp http://ca.zhengdapipe.com/info/introduction-to-the-expansion-process-of-galva-97592840.html Introducció al procés d'expansió de canonades galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n2024071110395982c7b.jpg http://ca.zhengdapipe.com/info/maintenance-and-maintenance-of-hot-dip-galvan-97596934.html Manteniment i manteniment de tub quadrat galvanitzat en calent http://ca.zhengdapipe.com/uploads/33181/info/n20240711103220324ab.jpg http://ca.zhengdapipe.com/info/what-factors-will-cause-the-spiral-tube-to-rus-97595558.html Quins factors faran que el tub espiral s'oxidi i es corroeixi http://ca.zhengdapipe.com/uploads/33181/info/n2024071110185972d3d.jpg http://ca.zhengdapipe.com/info/application-field-of-galvanized-pipes-97679587.html Camp d'aplicació de canonades galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n20240712105854a30af.jpg http://ca.zhengdapipe.com/info/feature-characteristics-of-galvanized-pipes-97679586.html Característiques de les canonades galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n202407121036364883c.jpg http://ca.zhengdapipe.com/info/introduction-to-the-condition-of-galvanized-pi-97679583.html Introducció a l'estat de les canonades galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n202407121022441ea62.jpg http://ca.zhengdapipe.com/info/straach-treatment-of-straight-seam-welded-pipe-97679582.html Tractament Straach de canonades soldades amb costura recta http://ca.zhengdapipe.com/uploads/33181/info/n20240712095735540ec.jpg http://ca.zhengdapipe.com/info/reasons-for-the-bend-of-straight-welding-pipes-97679581.html Motius per al corbat de canonades rectes de soldadura http://ca.zhengdapipe.com/uploads/33181/info/n20240712094805cf8ae.webp http://ca.zhengdapipe.com/info/technical-requirements-for-the-manufacturing-o-97679592.html Requisits tècnics per a la fabricació de tubs d'acer espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240714094209f3023.jpg http://ca.zhengdapipe.com/info/two-mechanical-performance-test-methods-of-spi-97679589.html Dos mètodes de prova de rendiment mecànic de tubs d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240714093514c90ad.jpg http://ca.zhengdapipe.com/info/what-are-the-differences-between-galvanized-pi-97679591.html Quines diferències hi ha entre les canonades galvanitzades i les d'acer inoxidable http://ca.zhengdapipe.com/uploads/33181/info/n20240714092431c41a2.jpg http://ca.zhengdapipe.com/info/save-of-straight-seam-steel-pipes-97679590.html Estalvi de canonades d'acer de costura recta http://ca.zhengdapipe.com/uploads/33181/info/n202407140904462b8c3.jpg http://ca.zhengdapipe.com/info/introduction-to-straight-sewing-steel-pipes-97679588.html Introducció a la costura recta de canonades d'acer http://ca.zhengdapipe.com/uploads/33181/info/n202407140859509a01b.jpg http://ca.zhengdapipe.com/info/method-of-storage-of-spiral-steel-pipes-97718288.html Mètode d'emmagatzematge de tubs d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n202407150940021dbf3.jpg http://ca.zhengdapipe.com/info/polyethylene-anti-corrosion-steel-pipe-and-an-97718286.html Tub d'acer anticorrosió de polietilè i tecnologia anticorrosiva http://ca.zhengdapipe.com/uploads/33181/info/n202407150930226b4ae.jpg http://ca.zhengdapipe.com/info/3pe-anticorrosive-steel-pipe-s-anticorrosive-s-97718287.html Estructura anticorrosiva de la canonada d'acer anticorrosió 3PE http://ca.zhengdapipe.com/uploads/33181/info/n202407150926331e932.jpg http://ca.zhengdapipe.com/info/introduction-to-3pe-anticorrosive-steel-pipe-97718285.html Introducció a la canonada d'acer anticorrosió 3PE http://ca.zhengdapipe.com/uploads/33181/info/n202407150922487fc24.jpg http://ca.zhengdapipe.com/info/double-sided-buried-arc-spiral-welding-steel-97718294.html Procés de producció de canonades d'acer de soldadura en espiral d'arc enterrat de doble cara http://ca.zhengdapipe.com/uploads/33181/info/n20240715090101c858f.jpg http://ca.zhengdapipe.com/info/storage-of-anticorrosive-spiral-tube-97718291.html Emmagatzematge de tub espiral anticorrosiu http://ca.zhengdapipe.com/uploads/33181/info/n20240716101918e16b4.jpg http://ca.zhengdapipe.com/info/advantages-of-anticorrosive-spiral-tubes-97718289.html Avantatges dels tubs espirals anticorrosius http://ca.zhengdapipe.com/uploads/33181/info/n2024071610135720292.jpg http://ca.zhengdapipe.com/info/introduction-to-the-cause-of-hot-dip-galvaniz-97718293.html Introducció a la causa de les fuites galvanitzades en calent http://ca.zhengdapipe.com/uploads/33181/info/n2024071610063004b9e.jpg http://ca.zhengdapipe.com/info/what-are-the-advantages-of-spiral-steel-pipes-97718290.html Quins són els avantatges de les canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240716094014dde02.jpg http://ca.zhengdapipe.com/info/decisive-factor-in-the-quality-of-spiral-tube-97718292.html Factor decisiu en la qualitat del tub espiral http://ca.zhengdapipe.com/uploads/33181/info/n2024071609220964d2e.webp http://ca.zhengdapipe.com/info/principles-of-anticorrosive-steel-pipes-97826308.html Principis de canonades d'acer anticorrosió http://ca.zhengdapipe.com/uploads/33181/info/n2024071710361570844.jpg http://ca.zhengdapipe.com/info/the-characteristics-of-3pe-anti-corrosion-ste-97826922.html Les característiques de la canonada d'acer anticorrosió 3PE http://ca.zhengdapipe.com/uploads/33181/info/n2024071709515870d7b.jpg http://ca.zhengdapipe.com/info/construction-quality-of-the-anticorrosive-laye-97826307.html Qualitat constructiva de la capa anticorrosiva del tub espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240717093439c412b.jpg http://ca.zhengdapipe.com/info/construction-of-the-anti-corrosion-layer-in-t-97826306.html Construcció de la capa anticorrosió al tub espiral http://ca.zhengdapipe.com/uploads/33181/info/n2024071709310661c38.jpg http://ca.zhengdapipe.com/info/construction-conditions-for-the-anticorrosive-97826305.html Condicions de construcció de la capa anticorrosiva del tub espiral http://ca.zhengdapipe.com/uploads/33181/info/n202407170916352176a.jpg http://ca.zhengdapipe.com/info/pre-treatment-of-galvanized-parts-when-painti-97826313.html Pretractament de peces 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http://ca.zhengdapipe.com/info/3pe-anti-corrosion-steel-pipe-structure-97840050.html Estructura de tubs d'acer anticorrosió 3PE http://ca.zhengdapipe.com/uploads/33181/info/n2024071908595419496.jpg http://ca.zhengdapipe.com/info/how-to-control-the-defects-of-the-inside-surfa-97840030.html Com controlar els defectes de la superfície interior de la canonada d'acer anticorrosió http://ca.zhengdapipe.com/uploads/33181/info/n2024071908494688ebf.jpg http://ca.zhengdapipe.com/info/anticorrosive-treatment-of-melt-epoxy-powder-a-97840021.html Tractament anticorrosió del tub anticorrosió de pols epoxi fosa http://ca.zhengdapipe.com/uploads/33181/info/n2024071908393625024.jpg http://ca.zhengdapipe.com/info/classification-of-melting-epoxy-powder-97840022.html Classificació de pols epoxi en fusió http://ca.zhengdapipe.com/uploads/33181/info/n20240719083610159b1.jpg http://ca.zhengdapipe.com/info/introduction-to-melting-epoxy-powder-97840020.html Introducció a la fusió de pols epoxi 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http://ca.zhengdapipe.com/uploads/33181/info/n2024072114480459524.png http://ca.zhengdapipe.com/info/3pe-anti-corrosion-steel-pipes-97905292.html Tubs d'acer anticorrosió 3PE http://ca.zhengdapipe.com/uploads/33181/info/n20240721144150165b9.jpg http://ca.zhengdapipe.com/info/installation-introduction-of-straight-seam-ste-97911228.html Introducció a la instal·lació de canonades d'acer de costura recta http://ca.zhengdapipe.com/uploads/33181/info/n2024072211323263c41.jpg http://ca.zhengdapipe.com/info/how-to-maintain-thermal-stability-of-anticorro-97906857.html Com mantenir l'estabilitat tèrmica del tub espiral anticorrosiu http://ca.zhengdapipe.com/uploads/33181/info/n202407221122166a57a.jpg http://ca.zhengdapipe.com/info/welding-method-of-spiral-steel-pipe-97905288.html Mètode de soldadura de tubs d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240722111346ae24c.jpg http://ca.zhengdapipe.com/info/introduction-to-the-diameter-of-the-spiral-ste-97910346.html Introducció al diàmetre del tub d'acer espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240722110540120b0.jpg http://ca.zhengdapipe.com/info/production-process-of-straight-seam-welding-pi-97908567.html Procés de producció de canonades de soldadura de costura recta http://ca.zhengdapipe.com/uploads/33181/info/n20240722104607be22a.jpg http://ca.zhengdapipe.com/info/quality-problem-of-steel-pipe-welding-bite-97988929.html Problema de qualitat de la soldadura de canonades d'acer - mossegada http://ca.zhengdapipe.com/uploads/33181/info/n202407231056054f231.jpg http://ca.zhengdapipe.com/info/leakage-of-the-whole-tube-of-the-weld-pipe-97988936.html Fuga de tot el tub de la canonada de soldadura http://ca.zhengdapipe.com/uploads/33181/info/n20240723104620973a0.webp http://ca.zhengdapipe.com/info/quality-resolution-of-bridge-spiral-steel-pipe-97988919.html Resolució de qualitat de tubs d'acer en espiral de pont http://ca.zhengdapipe.com/uploads/33181/info/n20240723104139b4a5f.webp http://ca.zhengdapipe.com/info/how-to-clean-up-the-drainage-spiral-tube-97988913.html Com netejar el tub espiral de drenatge http://ca.zhengdapipe.com/uploads/33181/info/n20240723103530e15d8.jpg http://ca.zhengdapipe.com/info/different-specifications-of-straight-seam-stee-97988920.html Diferents especificacions de canonades d'acer de costura recta http://ca.zhengdapipe.com/uploads/33181/info/n2024072310120302289.jpg http://ca.zhengdapipe.com/info/how-to-divide-the-material-and-use-of-straight-97988934.html Com dividir el material i utilitzar tubs rectes d'acer http://ca.zhengdapipe.com/uploads/33181/info/n20240724100938339f7.webp http://ca.zhengdapipe.com/info/the-principles-that-the-square-pipe-ingredient-97988938.html Els principis que han de seguir els ingredients de la canonada quadrada http://ca.zhengdapipe.com/uploads/33181/info/n20240724100229d049f.jpg http://ca.zhengdapipe.com/info/what-kind-of-production-process-is-straight-st-97988932.html Quin tipus de procés de producció és el tub recte de flexió de tubs d'acer? http://ca.zhengdapipe.com/uploads/33181/info/n20240724095023dffbc.jpg http://ca.zhengdapipe.com/info/quality-problem-of-steel-pipe-welding-air-hol-97988930.html Problema de qualitat de la soldadura de canonades d'acer -forats d'aire http://ca.zhengdapipe.com/uploads/33181/info/n202407240928230711b.jpg http://ca.zhengdapipe.com/info/quality-problem-of-steel-pipe-weld-burning-97988931.html Problema de qualitat de la soldadura de canonades d'acer http://ca.zhengdapipe.com/uploads/33181/info/n202407240926316d520.jpg http://ca.zhengdapipe.com/info/classification-and-application-of-galvanized-s-98747928.html Classificació i aplicació del tub quadrat galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n202407261629102549a.jpg http://ca.zhengdapipe.com/info/buried-arc-welding-of-steel-pipes-98747918.html Soldadura d'arc soterrat de canonades d'acer http://ca.zhengdapipe.com/uploads/33181/info/n20240726161740e099c.jpg http://ca.zhengdapipe.com/info/how-to-control-the-corrosion-of-galvanized-squ-98747929.html Com controlar la corrosió del tub quadrat galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n202407261548319f5e8.png http://ca.zhengdapipe.com/info/welding-of-straight-seam-steel-pipes-98747909.html Soldadura de canonades rectes d'acer http://ca.zhengdapipe.com/uploads/33181/info/n2024072615250052c6e.jpg http://ca.zhengdapipe.com/info/the-purpose-of-straight-seam-steel-pipes-98747907.html El propòsit de les canonades d'acer de costura recta http://ca.zhengdapipe.com/uploads/33181/info/n2024072615220452003.jpg http://ca.zhengdapipe.com/info/what-are-the-different-surface-processing-of-s-98747922.html Quins són els diferents processaments superficials de canonades d'acer espirals i canonades d'acer inoxidable http://ca.zhengdapipe.com/uploads/33181/info/n202407291021186f80d.jpg http://ca.zhengdapipe.com/info/the-installation-points-and-precautions-for-th-98747916.html Els punts d'instal·lació i les precaucions per a la instal·lació de tubs rectes d'acer de gran diàmetre http://ca.zhengdapipe.com/uploads/33181/info/n2024072910163930dc2.jpg http://ca.zhengdapipe.com/info/what-are-the-differences-between-hot-dip-galv-98747919.html Quines diferències hi ha entre els tubs rodons galvanitzats en calent i els tubs sense soldadura http://ca.zhengdapipe.com/uploads/33181/info/n202407291004335683b.jpg http://ca.zhengdapipe.com/info/how-to-judge-the-quality-of-hot-dip-galvanize-98747917.html Com jutjar la qualitat de les canonades galvanitzades en calent http://ca.zhengdapipe.com/uploads/33181/info/n20240729095056e024a.jpg http://ca.zhengdapipe.com/info/what-are-the-differences-between-galvanized-be-98747915.html Quines diferències hi ha entre els tubs de cinturó galvanitzat i els tubs galvanitzats en calent http://ca.zhengdapipe.com/uploads/33181/info/n2024072909440446c68.jpg http://ca.zhengdapipe.com/info/introduction-to-the-mechanical-performance-of-98747923.html Introducció al rendiment mecànic del tub quadrat laminat en calent http://ca.zhengdapipe.com/uploads/33181/info/n202407310823048c5d5.jpg http://ca.zhengdapipe.com/info/detailed-introduction-to-galvanized-steel-pipe-98747931.html Introducció detallada a les canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n20240801142812bb428.jpg http://ca.zhengdapipe.com/info/introduction-to-the-production-process-of-spir-98747927.html Introducció al procés de producció de tubs d'acer espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240802094310eb275.jpg http://ca.zhengdapipe.com/info/what-kind-of-treatment-should-i-do-before-the-98747926.html Quin tipus de tractament he de fer abans de galvanitzar la canonada d'acer http://ca.zhengdapipe.com/uploads/33181/info/n202408051633460f4a4.jpg http://ca.zhengdapipe.com/info/the-manufacturing-process-of-the-grilly-steel-98984344.html El procés de fabricació del tub d'acer a la graella del cotxe http://ca.zhengdapipe.com/uploads/33181/info/n20240806091644c5685.webp http://ca.zhengdapipe.com/info/advantages-and-disadvantages-of-cold-galvanizi-98984348.html Avantatges i inconvenients de la galvanització en fred http://ca.zhengdapipe.com/uploads/33181/info/n20240807103748525c7.jpg http://ca.zhengdapipe.com/info/advantages-and-disadvantages-of-hot-dip-galvan-98984358.html Avantatges i desavantatges del recobriment galvanitzat per immersió en calent http://ca.zhengdapipe.com/uploads/33181/info/n202408071029192cfae.jpg http://ca.zhengdapipe.com/info/application-range-of-cold-galvanizing-98984347.html Gamma d'aplicació de galvanització en fred http://ca.zhengdapipe.com/uploads/33181/info/n20240807092809515bf.jpg http://ca.zhengdapipe.com/info/application-range-of-hot-galvanizing-98984346.html Gamma d'aplicació de galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n2024080709225100c02.jpg http://ca.zhengdapipe.com/info/differences-between-hot-galvanizing-and-cold-g-98984345.html Diferències entre la galvanització en calent i la galvanització en fred http://ca.zhengdapipe.com/uploads/33181/info/n20240807091747e78fe.jpg http://ca.zhengdapipe.com/info/advantages-and-disadvantages-of-cold-galvanize-98984352.html Avantatges i desavantatges de les canonades d'acer galvanitzat en fred http://ca.zhengdapipe.com/uploads/33181/info/n2024080809523193019.jpg http://ca.zhengdapipe.com/info/advantages-and-disadvantages-of-hot-dip-galvan-98984356.html Avantatges i desavantatges de les canonades d'acer galvanitzat en calent http://ca.zhengdapipe.com/uploads/33181/info/n202408080946307ef07.jpg http://ca.zhengdapipe.com/info/application-scope-of-cold-galvanized-steel-pip-98984355.html Àmbit d'aplicació de canonades d'acer galvanitzat en fred http://ca.zhengdapipe.com/uploads/33181/info/n2024080809383365545.jpg http://ca.zhengdapipe.com/info/application-scope-of-hot-dip-galvanized-steel-98984350.html Àmbit d'aplicació de canonades d'acer galvanitzat en calent http://ca.zhengdapipe.com/uploads/33181/info/n20240808092609f7bfe.jpg http://ca.zhengdapipe.com/info/differences-between-hot-dip-galvanized-steel-p-98984353.html Diferències entre les canonades d'acer galvanitzat en calent i les canonades d'acer galvanitzat en fred http://ca.zhengdapipe.com/uploads/33181/info/n2024080809124228fdf.jpg http://ca.zhengdapipe.com/info/classification-and-process-knowledge-of-galvan-98984357.html Classificació i coneixement del procés de canonades galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n20240809094315dc5f6.jpg http://ca.zhengdapipe.com/info/reasons-for-the-widespread-use-of-hot-dip-galv-98984351.html Raons per a l'ús generalitzat de canonades d'acer galvanitzat en calent en protecció contra incendis http://ca.zhengdapipe.com/uploads/33181/info/n20240809093908fd24f.jpg http://ca.zhengdapipe.com/info/quality-inspection-methods-for-spiral-steel-pi-98984349.html Mètodes d'inspecció de qualitat per a canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240809093513909e3.jpg http://ca.zhengdapipe.com/info/precautions-for-welding-galvanized-pipes-98984361.html Precaucions per a la soldadura de canonades galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n20240809092937fdcbc.jpg http://ca.zhengdapipe.com/info/welding-of-steel-after-hot-dip-galvanizing-98984354.html Soldadura d'acer després de galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n20240809092447837a4.jpg http://ca.zhengdapipe.com/info/quality-differentiation-of-bridge-spiral-steel-99030064.html Diferenciació de qualitat de tubs d'acer en espiral de pont http://ca.zhengdapipe.com/uploads/33181/info/n20240811093807bdc40.jpg http://ca.zhengdapipe.com/info/classification-of-welded-steel-pipes-99030082.html Classificació de canonades d'acer soldades http://ca.zhengdapipe.com/uploads/33181/info/n20240811093319cacd1.jpg http://ca.zhengdapipe.com/info/application-of-welded-steel-pipes-99030065.html Aplicació de canonades d'acer soldades http://ca.zhengdapipe.com/uploads/33181/info/n2024081109194206bfe.jpg http://ca.zhengdapipe.com/info/introduction-to-welded-steel-pipes-99030063.html Introducció a les canonades d'acer soldades http://ca.zhengdapipe.com/uploads/33181/info/n2024081109121440654.jpg http://ca.zhengdapipe.com/info/diameter-of-spiral-pipe-99030062.html Diàmetre del tub espiral http://ca.zhengdapipe.com/uploads/33181/info/n2024081109050285051.jpg http://ca.zhengdapipe.com/info/common-defects-in-the-welding-zone-of-spiral-s-99041579.html Defectes comuns a la zona de soldadura de canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240812110911c9f36.jpg http://ca.zhengdapipe.com/info/introduction-to-the-development-history-of-sea-99041581.html Introducció a la història del desenvolupament dels tubs d'acer sense soldadura http://ca.zhengdapipe.com/uploads/33181/info/n202408121106245fa33.jpg http://ca.zhengdapipe.com/info/production-of-longitudinally-welded-pipes-99041580.html Producció de canonades soldades longitudinalment http://ca.zhengdapipe.com/uploads/33181/info/n202408121103028a2b9.jpg http://ca.zhengdapipe.com/info/the-influence-of-metallic-elements-in-the-prod-99041577.html La influència dels elements metàl·lics en la producció de tubs espirals http://ca.zhengdapipe.com/uploads/33181/info/n202408121059502d4ce.jpg http://ca.zhengdapipe.com/info/how-to-achieve-energy-saving-in-fluid-transpor-99041575.html Com aconseguir l'estalvi d'energia en el transport de fluids amb tubs d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n202408121056321528f.jpg http://ca.zhengdapipe.com/info/what-to-pay-attention-to-when-using-spiral-ste-99259607.html A què cal prestar atenció quan s'utilitzen canonades d'acer espirals http://ca.zhengdapipe.com/uploads/33181/info/n202408130949540483e.jpg http://ca.zhengdapipe.com/info/what-to-pay-attention-to-in-the-production-of-99259569.html Què cal prestar atenció a la producció de canonades d'acer espirals http://ca.zhengdapipe.com/uploads/33181/info/n20240813094651ebfa7.jpg http://ca.zhengdapipe.com/info/what-determines-the-quality-of-large-diameter-99259884.html Què determina la qualitat de les canonades d'acer en espiral de gran diàmetre http://ca.zhengdapipe.com/uploads/33181/info/n20240813094358878a8.jpg http://ca.zhengdapipe.com/info/spiral-steel-pipe-and-spiral-welded-pipe-99260436.html Tub d'acer espiral i tub soldat en espiral http://ca.zhengdapipe.com/uploads/33181/info/n202408130941057b9dc.jpg http://ca.zhengdapipe.com/info/how-to-identify-the-quality-of-spiral-steel-pi-99259973.html Com identificar la qualitat de les canonades d'acer en espiral per als ponts http://ca.zhengdapipe.com/uploads/33181/info/n20240813093716c955b.jpg http://ca.zhengdapipe.com/info/analysis-of-wear-resistance-causes-of-galvaniz-99259444.html Anàlisi de les causes de resistència al desgast de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n20240815094708a0602.jpg http://ca.zhengdapipe.com/info/pickling-and-passivation-of-galvanized-steel-p-99259907.html Decapat i passivació de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n2024081509435121725.jpg http://ca.zhengdapipe.com/info/achieving-high-quality-galvanized-steel-pipe-p-99259779.html Aconseguint un processament de canonades d'acer galvanitzat d'alta qualitat http://ca.zhengdapipe.com/uploads/33181/info/n2024081509402003201.jpg http://ca.zhengdapipe.com/info/analyzing-the-wear-resistance-of-galvanized-st-99260400.html Anàlisi de la resistència al desgast de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n20240815093653a183a.jpg http://ca.zhengdapipe.com/info/classification-and-production-process-of-galva-99260007.html Classificació i Procés de Producció de Tubs Galvanitzats http://ca.zhengdapipe.com/uploads/33181/info/n202408150928003a30c.jpg http://ca.zhengdapipe.com/info/classification-and-safety-management-of-spiral-99259625.html Classificació i gestió de la seguretat de les canonades d'acer espirals http://ca.zhengdapipe.com/uploads/33181/info/n20240816090836ba131.jpg http://ca.zhengdapipe.com/info/when-handling-spiral-steel-pipes-it-is-crucia-99259473.html Quan es manipulen tubs d'acer en espiral, és fonamental evitar aquests defectes http://ca.zhengdapipe.com/uploads/33181/info/n20240816090510fdfed.jpg http://ca.zhengdapipe.com/info/how-to-differentiate-floating-rust-from-rust-o-99259417.html Com diferenciar l'òxid flotant de l'òxid a les canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240816090046ae3bb.jpg http://ca.zhengdapipe.com/info/ultrasonic-flaw-detection-of-spiral-steel-pipe-99259716.html Detecció de defectes per ultrasons de canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240816085746f5d27.jpg http://ca.zhengdapipe.com/info/structural-properties-of-galvanized-steel-pipe-99259820.html Propietats estructurals de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n20240816085350ad5bb.jpg http://ca.zhengdapipe.com/info/how-to-achieve-energy-conservation-in-fluid-tr-99259616.html Com aconseguir l'estalvi d'energia en la transmissió de fluids amb tubs d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240817110523717f6.jpg http://ca.zhengdapipe.com/info/process-characteristics-of-spiral-steel-pipes-99259957.html Característiques del procés de canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n202408171056097d9ea.jpg http://ca.zhengdapipe.com/info/identification-of-inferior-steel-tubes-in-sewa-99259419.html Identificació de tubs d'acer inferiors en tubs espirals de descàrrega d'aigües residuals http://ca.zhengdapipe.com/uploads/33181/info/n20240817105215de031.jpg http://ca.zhengdapipe.com/info/how-to-avoid-cracks-in-spiral-tubes-99259445.html Com evitar esquerdes als tubs en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240817104844fd5e3.jpg http://ca.zhengdapipe.com/info/requirements-for-welding-of-spiral-tube-seams-99260084.html Requisits per a la soldadura de costures de tubs espirals http://ca.zhengdapipe.com/uploads/33181/info/n2024081710420587aa0.jpg http://ca.zhengdapipe.com/info/introduction-to-the-production-process-of-seam-99359341.html Introducció al procés de producció de tubs d'acer sense soldadura http://ca.zhengdapipe.com/uploads/33181/info/n20240820104041016d8.jpg http://ca.zhengdapipe.com/info/where-can-seamless-tubes-be-applied-99359340.html On es poden aplicar els tubs sense costures? http://ca.zhengdapipe.com/uploads/33181/info/n2024082010264899579.jpg http://ca.zhengdapipe.com/info/reasons-why-hot-dip-galvanized-pipes-are-mostl-99359332.html Motius pels quals les canonades galvanitzades en calent s'utilitzen principalment en la lluita contra incendis http://ca.zhengdapipe.com/uploads/33181/info/n20240820102231fdaa4.jpg http://ca.zhengdapipe.com/info/hot-dip-galvanizing-process-of-steel-pipes-99359330.html Procés de galvanització en calent de canonades d'acer http://ca.zhengdapipe.com/uploads/33181/info/n20240820101030283e8.jpg http://ca.zhengdapipe.com/info/what-is-the-difference-between-spiral-steel-pi-99359331.html Quina diferència hi ha entre les canonades d'acer en espiral i les canonades enrotllades amb placa d'acer? http://ca.zhengdapipe.com/uploads/33181/info/n2024082009381566476.jpg http://ca.zhengdapipe.com/info/hot-rolled-seamless-steel-tubes-99359338.html Tubs d'acer sense soldadura laminats en calent http://ca.zhengdapipe.com/uploads/33181/info/n20240821101137a7bb5.jpg http://ca.zhengdapipe.com/info/the-anti-corrosion-process-determines-the-serv-99359337.html El procés anticorrosió determina la vida útil de les canonades d'acer anticorrosió http://ca.zhengdapipe.com/uploads/33181/info/n202408210950396b5ea.jpg http://ca.zhengdapipe.com/info/what-is-the-anti-corrosion-process-of-3pe-anti-99359335.html Quin és el procés anticorrosió de la canonada d'acer anticorrosió 3PE http://ca.zhengdapipe.com/uploads/33181/info/n202408210936087db1b.jpg http://ca.zhengdapipe.com/info/inspection-methods-for-small-diameter-spiral-s-99359334.html Mètodes d'inspecció per a canonades d'acer en espiral de petit diàmetre http://ca.zhengdapipe.com/uploads/33181/info/n202408210933161018a.jpg http://ca.zhengdapipe.com/info/heat-treatment-defects-of-steel-tubes-and-thei-99359345.html Defectes de tractament tèrmic dels tubs d'acer i la seva prevenció http://ca.zhengdapipe.com/uploads/33181/info/n20240821092840f735c.jpg http://ca.zhengdapipe.com/info/specifications-of-commonly-used-welded-galvani-99408693.html Especificacions de canonades d'acer galvanitzat soldades i plaques d'acer d'ús habitual per a la decoració de la llar http://ca.zhengdapipe.com/uploads/33181/info/n202408220925329cc3c.jpg http://ca.zhengdapipe.com/info/weight-coefficients-of-galvanized-steel-pipes-99408691.html Coeficients de pes de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n20240822092127a4d8e.jpg http://ca.zhengdapipe.com/info/classification-and-production-process-of-hot-d-99408696.html Classificació i procés de producció de canonades d'acer galvanitzat en calent http://ca.zhengdapipe.com/uploads/33181/info/n20240822091658ff503.jpg http://ca.zhengdapipe.com/info/how-to-achieve-energy-saving-in-spiral-steel-t-99408689.html Com aconseguir l'estalvi d'energia en tubs d'acer en espiral per al transport de fluids http://ca.zhengdapipe.com/uploads/33181/info/n2024082209051657889.jpg http://ca.zhengdapipe.com/info/process-characteristics-of-spiral-steel-tubes-99408692.html Característiques del procés dels tubs d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240822085907a1aed.jpg http://ca.zhengdapipe.com/info/why-steel-pipes-need-to-undergo-heat-treatment-99408698.html Per què les canonades d'acer necessiten un tractament tèrmic https://img01.v15cdn.com/gallery/4x3/152.webp http://ca.zhengdapipe.com/info/do-you-know-the-product-features-of-plastic-co-99408697.html Coneixeu les característiques del producte de les canonades d'acer recobertes de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n20240823092911fc726.jpg http://ca.zhengdapipe.com/info/the-corrosion-protection-and-insulation-effect-99408694.html La protecció contra la corrosió i l'efecte d'aïllament de les canonades aïllades http://ca.zhengdapipe.com/uploads/33181/info/n20240823092502d83f3.jpg http://ca.zhengdapipe.com/info/advantages-and-disadvantages-of-hot-rolled-sea-99408695.html Avantatges i desavantatges dels tubs d'acer sense soldadura laminats en calent http://ca.zhengdapipe.com/uploads/33181/info/n20240823092054a3fac.jpg http://ca.zhengdapipe.com/info/how-to-distinguish-between-3pe-anticorrosive-s-99408690.html Com distingir entre tubs d'acer anticorrosius 3PE i tubs recoberts de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202408230916257c4c2.jpg http://ca.zhengdapipe.com/info/applications-and-production-process-of-spiral-99479443.html Aplicacions i procés de producció de tubs espirals http://ca.zhengdapipe.com/uploads/33181/info/n202408251105037926b.jpg http://ca.zhengdapipe.com/info/introduction-to-the-advantages-of-3pe-anticorr-99479441.html Introducció als avantatges de les canonades d'acer anticorrosius 3PE https://img01.v15cdn.com/gallery/4x3/255.webp http://ca.zhengdapipe.com/info/differences-between-hot-rolled-steel-tubes-and-99479440.html Diferències entre tubs d'acer laminats en calent i tubs d'acer laminats en fred http://ca.zhengdapipe.com/uploads/33181/info/n20240825105654b2281.jpg http://ca.zhengdapipe.com/info/treatment-methods-for-decarburization-on-the-s-99479448.html Mètodes de tractament per a la descarburació a la superfície de tubs espirals http://ca.zhengdapipe.com/uploads/33181/info/n202408251052143876f.jpg http://ca.zhengdapipe.com/info/welding-process-of-galvanized-steel-pipe-99479449.html Procés de soldadura de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n20240825103919da077.jpg http://ca.zhengdapipe.com/info/what-are-the-surface-requirements-for-spiral-s-99479442.html Quins són els requisits de superfície per als tubs d'acer en espiral? http://ca.zhengdapipe.com/uploads/33181/info/n202408261022240aa4f.jpg http://ca.zhengdapipe.com/info/forming-methods-of-spiral-pipe-coiling-and-cau-99479447.html Mètodes de formació d'enrotllament de canonades en espiral i causes dels defectes de la costura de formació https://img01.v15cdn.com/gallery/4x3/12.webp http://ca.zhengdapipe.com/info/introduction-to-the-production-process-of-spir-99479444.html Introducció al procés de producció de canonades espirals https://img01.v15cdn.com/gallery/4x3/155.webp http://ca.zhengdapipe.com/info/introduction-to-the-differences-between-ordina-99479446.html Introducció a les diferències entre canonades d'acer normals i canonades soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n2024082610033337913.jpg http://ca.zhengdapipe.com/info/factors-causing-corrosion-of-spiral-pipes-99479445.html Factors que causen la corrosió de canonades espirals http://ca.zhengdapipe.com/uploads/33181/info/n20240826095531c47e3.jpg http://ca.zhengdapipe.com/info/manufacturing-process-of-galvanized-steel-pipe-99635205.html Procés de fabricació de canonades d'acer galvanitzat amb extrems roscats http://ca.zhengdapipe.com/uploads/33181/info/n20240827084738294d0.jpg http://ca.zhengdapipe.com/info/classification-of-spiral-steel-pipes-based-on-99635233.html Classificació de canonades d'acer en espiral en funció dels modes de funcionament http://ca.zhengdapipe.com/uploads/33181/info/n202408270844123daac.jpg http://ca.zhengdapipe.com/info/production-process-knowledge-of-hot-dip-galvan-99635214.html Coneixement del procés de producció de canonades d'acer galvanitzat en calent https://img01.v15cdn.com/gallery/4x3/132.webp http://ca.zhengdapipe.com/info/final-heat-treatment-of-steel-tubes-99635207.html Tractament tèrmic final de tubs d'acer http://ca.zhengdapipe.com/uploads/33181/info/n202408270836366d5a8.jpg http://ca.zhengdapipe.com/info/purpose-and-characteristics-of-hot-dip-galvani-99635204.html Propòsit i característiques de les canonades d'acer galvanitzat en calent http://ca.zhengdapipe.com/uploads/33181/info/n20240827083230a2e41.jpg http://ca.zhengdapipe.com/info/connection-methods-for-epoxy-resin-anticorrosi-99635220.html Mètodes de connexió per a canonades d'acer anticorrosius de resina epoxi http://ca.zhengdapipe.com/uploads/33181/info/n20240828094651d061a.jpg http://ca.zhengdapipe.com/info/safety-precautions-for-anticorrosive-steel-pip-99635227.html Precaucions de seguretat per a la construcció de canonades d'acer anticorrosius https://img01.v15cdn.com/gallery/4x3/26.webp http://ca.zhengdapipe.com/info/execution-standards-for-3pe-anticorrosive-stee-99635225.html Normes d'execució per a canonades d'acer anticorrosiu 3PE http://ca.zhengdapipe.com/uploads/33181/info/n2024082809385592f7d.jpg http://ca.zhengdapipe.com/info/methods-of-corrosion-prevention-for-steel-pipe-99635229.html Mètodes de prevenció de la corrosió per a canonades d'acer https://img01.v15cdn.com/gallery/4x3/206.webp http://ca.zhengdapipe.com/info/advantages-of-3pe-anticorrosive-steel-pipes-99635215.html Avantatges dels tubs d'acer anticorrosius 3PE https://img01.v15cdn.com/gallery/4x3/26.webp http://ca.zhengdapipe.com/info/the-reasons-behind-the-excellent-corrosion-res-100041586.html Les raons darrere de l'excel·lent resistència a la corrosió de les canonades d'acer anticorrosius http://ca.zhengdapipe.com/uploads/33181/info/n20240829094021fd297.jpg http://ca.zhengdapipe.com/info/what-are-the-procedures-for-inspecting-plastic-100041583.html Quins són els procediments per inspeccionar les canonades d'acer recobertes de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n2024082909363574d41.jpg http://ca.zhengdapipe.com/info/marking-method-for-steel-grades-of-large-diame-100041584.html Mètode de marcatge per a graus d'acer de canonades espirals de gran diàmetre https://img01.v15cdn.com/gallery/4x3/157.webp http://ca.zhengdapipe.com/info/advantages-and-disadvantages-of-spiral-steel-p-100041581.html Avantatges i desavantatges de les canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n2024082909261531542.jpg http://ca.zhengdapipe.com/info/welding-operation-of-spiral-steel-pipes-100041582.html Operació de soldadura de canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n202408290919420af8e.jpg http://ca.zhengdapipe.com/info/surface-treatment-methods-and-installation-of-100041596.html Mètodes de tractament superficial i instal·lació de canonades espirals http://ca.zhengdapipe.com/uploads/33181/info/n202408300941579e9aa.jpg http://ca.zhengdapipe.com/info/requirements-for-zinc-layer-thickness-of-hot-d-100041585.html Requisits per al gruix de la capa de zinc dels recobriments galvanitzats en calent http://ca.zhengdapipe.com/uploads/33181/info/n20240830093857e2218.jpg http://ca.zhengdapipe.com/info/comparison-of-technical-characteristics-of-spi-100041591.html Comparació de característiques tècniques de canonades soldades en espiral i canonades de soldadura rectes http://ca.zhengdapipe.com/uploads/33181/info/n20240830093542f7310.jpg http://ca.zhengdapipe.com/info/handling-spiral-steel-pipes-requires-avoiding-100041587.html La manipulació de canonades d'acer en espiral requereix evitar aquests defectes http://ca.zhengdapipe.com/uploads/33181/info/n20240830092658623f2.jpg http://ca.zhengdapipe.com/info/three-connection-methods-of-spiral-steel-pipes-100041589.html Tres mètodes de connexió de canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20240830092311c70ba.jpg http://ca.zhengdapipe.com/info/introduction-to-the-differences-between-ordina-100041600.html Introducció a les diferències entre canonades d'acer normals i canonades soldades en espiral https://img01.v15cdn.com/gallery/4x3/185.webp http://ca.zhengdapipe.com/info/what-to-do-when-the-weld-reinforcement-of-weld-100041592.html Què fer quan el reforç de soldadura de canonades soldades és massa alt https://img01.v15cdn.com/gallery/4x3/265.webp http://ca.zhengdapipe.com/info/what-factors-affect-the-quality-of-spiral-stee-100041590.html Quins factors afecten la qualitat de les canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n202408311043361ab41.jpg http://ca.zhengdapipe.com/info/transportation-and-storage-guidelines-for-anti-100041603.html Directrius de transport i emmagatzematge de canonades d'acer anticorrosius https://img01.v15cdn.com/gallery/4x3/53.webp http://ca.zhengdapipe.com/info/introduction-to-different-types-of-welded-stee-100041612.html Introducció als diferents tipus de canonades d'acer soldades http://ca.zhengdapipe.com/uploads/33181/info/n20240831103356eb7a5.jpg http://ca.zhengdapipe.com/info/analysis-of-characteristics-of-galvanized-stee-100041588.html Anàlisi de les característiques de la soldadura d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n20240902091654a9139.jpg http://ca.zhengdapipe.com/info/connection-methods-of-galvanized-round-pipes-100041616.html Mètodes de connexió de canonades rodones galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n2024090209135197168.jpg http://ca.zhengdapipe.com/info/classification-and-characteristics-of-galvaniz-100041615.html Classificació i característiques de les canonades galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n20240902091101819fb.jpg http://ca.zhengdapipe.com/info/common-welding-defects-in-spiral-steel-pipes-100041593.html Defectes comuns de soldadura en tubs d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n2024090209065171879.jpg http://ca.zhengdapipe.com/info/precautions-for-using-straight-seam-steel-pipe-100041597.html Precaucions per a l'ús de canonades d'acer de costura recta http://ca.zhengdapipe.com/uploads/33181/info/n20240902090156fe997.jpg http://ca.zhengdapipe.com/info/practical-application-of-insulated-steel-pipes-100041595.html Aplicació pràctica de canonades d'acer aïllades http://ca.zhengdapipe.com/uploads/33181/info/n2024090314195690005.jpg http://ca.zhengdapipe.com/info/introduction-to-two-types-of-defects-in-welded-100041598.html Introducció a dos tipus de defectes en canonades d'acer soldades http://ca.zhengdapipe.com/uploads/33181/info/n20240903105106ef5c1.jpg http://ca.zhengdapipe.com/info/advantages-disadvantages-and-major-applicati-100041594.html Avantatges, desavantatges i aplicacions principals de les canonades d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n2024090310465465828.jpg http://ca.zhengdapipe.com/info/introduction-to-welded-steel-pipes-100041601.html Introducció a les canonades d'acer soldades http://ca.zhengdapipe.com/uploads/33181/info/n20240903104302ebc3f.jpg http://ca.zhengdapipe.com/info/purpose-and-properties-of-hot-dip-galvanized-s-100041599.html Propòsit i propietats de les canonades d'acer galvanitzat en calent http://ca.zhengdapipe.com/uploads/33181/info/n2024090310380922587.jpg http://ca.zhengdapipe.com/info/what-s-the-difference-between-hot-dip-galvaniz-100041608.html Quina diferència hi ha entre el tub d'acer galvanitzat en calent i el tub d'acer galvanitzat en fred? http://ca.zhengdapipe.com/uploads/33181/info/n2024090410503106a75.jpg http://ca.zhengdapipe.com/info/straach-processing-of-straight-seam-steel-pipe-100041607.html Tractament de tubs d'acer de costura recta http://ca.zhengdapipe.com/uploads/33181/info/n20240904103907b01fb.jpg http://ca.zhengdapipe.com/info/welding-quality-control-of-longitudinally-weld-100041605.html Control de qualitat de soldadura de canonades d'acer soldades longitudinalment http://ca.zhengdapipe.com/uploads/33181/info/n20240904092751f49fd.jpg http://ca.zhengdapipe.com/info/measurement-methods-for-the-length-of-longitud-100041606.html Mètodes de mesura de la longitud de canonades d'acer soldades longitudinalment http://ca.zhengdapipe.com/uploads/33181/info/n202409040924419e055.jpg http://ca.zhengdapipe.com/info/manufacturing-process-of-longitudinally-welded-100041602.html Procés de fabricació de canonades d'acer soldades longitudinalment http://ca.zhengdapipe.com/uploads/33181/info/n202409040921531c342.jpg http://ca.zhengdapipe.com/info/some-technical-requirements-for-galvanized-pip-100041617.html Alguns requisits tècnics per a canonades galvanitzades https://img01.v15cdn.com/gallery/4x3/225.webp http://ca.zhengdapipe.com/info/introduction-to-production-measures-of-thick-w-100041609.html Introducció a les mesures de producció de canonades espirals de paret gruixuda https://img01.v15cdn.com/gallery/4x3/114.webp http://ca.zhengdapipe.com/info/introduction-to-three-methods-of-connecting-sp-100041614.html Introducció als tres mètodes de connexió de tubs d'acer en espiral http://ca.zhengdapipe.com/uploads/33181/info/n2024090516133628ddd.jpg http://ca.zhengdapipe.com/info/what-factors-affect-the-quality-of-large-diame-100041610.html Quins factors afecten la qualitat dels tubs d'acer en espiral de gran diàmetre (SSAW) http://ca.zhengdapipe.com/uploads/33181/info/n20240905160954ae8e0.jpg 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http://ca.zhengdapipe.com/info/types-specifications-characteristics-and-ap-100041620.html Tipus, especificacions, característiques i aplicacions de canonades d'acer http://ca.zhengdapipe.com/uploads/33181/info/n20240906084138a9d60.jpg http://ca.zhengdapipe.com/info/what-is-the-skin-effect-100124994.html Quin és l'efecte de la pell? http://ca.zhengdapipe.com/uploads/33181/info/n20240907101048bc0b2.jpg http://ca.zhengdapipe.com/info/what-is-the-principle-of-high-frequency-weldin-100124996.html Quin és el principi de la soldadura d'alta freqüència? http://ca.zhengdapipe.com/uploads/33181/info/n20240907100628caf3f.jpg http://ca.zhengdapipe.com/info/what-is-high-frequency-welded-steel-pipe-100124999.html Què és la canonada d'acer soldada d'alta freqüència? http://ca.zhengdapipe.com/uploads/33181/info/n202409071002461b519.jpg http://ca.zhengdapipe.com/info/how-to-control-the-precision-of-slitting-100125001.html Com controlar la precisió del tall? http://ca.zhengdapipe.com/uploads/33181/info/n202409071000013da56.jpg http://ca.zhengdapipe.com/info/how-is-the-production-process-carried-out-in-a-100125003.html Com es realitza el procés de producció en un taller de tall? http://ca.zhengdapipe.com/uploads/33181/info/n20240907095502eb0cd.jpg http://ca.zhengdapipe.com/info/production-process-of-high-frequency-welded-st-100124998.html Procés de producció de canonades d'acer soldades d'alta freqüència - Preparació de matèries primeres http://ca.zhengdapipe.com/uploads/33181/info/n20240908084548cfca3.jpg http://ca.zhengdapipe.com/info/what-equipment-is-required-for-the-production-100125000.html Quins equips es necessiten per a la producció de canonades d'acer soldades d'alta freqüència? http://ca.zhengdapipe.com/uploads/33181/info/n2024090808404674551.jpg http://ca.zhengdapipe.com/info/what-raw-materials-are-required-for-high-frequ-100124997.html Quines matèries primeres es necessiten per a canonades d'acer soldades d'alta freqüència? http://ca.zhengdapipe.com/uploads/33181/info/n20240908083639c0ad8.jpg http://ca.zhengdapipe.com/info/why-is-high-frequency-welding-necessary-what-100125002.html Per què és necessària la soldadura d'alta freqüència? Quines són les característiques de la soldadura d'alta freqüència? http://ca.zhengdapipe.com/uploads/33181/info/n20240908083335e2d1f.jpg http://ca.zhengdapipe.com/info/what-is-the-proximity-effect-100124995.html Quin és l'efecte de proximitat? http://ca.zhengdapipe.com/uploads/33181/info/n202409080822489d709.jpg http://ca.zhengdapipe.com/info/what-is-magnetic-flux-leakage-testing-100342811.html Què és la prova de fuites de flux magnètic? http://ca.zhengdapipe.com/uploads/33181/info/n2024091009165018649.jpg http://ca.zhengdapipe.com/info/what-is-eddy-current-flaw-detection-100342812.html Què és la detecció de fallades de corrent de Foucault? http://ca.zhengdapipe.com/uploads/33181/info/n202409100914038e95a.jpg http://ca.zhengdapipe.com/info/frequency-welded-steel-tubes-100342817.html Postprocessament en el procés de producció de tubs d'acer soldats d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n2024091009105797281.jpg http://ca.zhengdapipe.com/info/forming-and-welding-100342809.html Procés de producció de tubs d'acer soldats d'alta freqüència - conformació i soldadura http://ca.zhengdapipe.com/uploads/33181/info/n202409100907017b659.jpg http://ca.zhengdapipe.com/info/production-process-of-high-frequency-welded-100342810.html Procés de producció de canonades d'acer soldades d'alta freqüència - Pretractament http://ca.zhengdapipe.com/uploads/33181/info/n20240910082641610ae.jpg http://ca.zhengdapipe.com/info/welding-method-resistance-welding-100342828.html Mètode de soldadura - soldadura per resistència http://ca.zhengdapipe.com/uploads/33181/info/n20240911093129e296b.jpg http://ca.zhengdapipe.com/info/welding-method-arc-welding-100342814.html Mètode de soldadura - soldadura per arc http://ca.zhengdapipe.com/uploads/33181/info/n202409110928231a920.jpg http://ca.zhengdapipe.com/info/finished-product-treatment-100342816.html Procés de producció de tubs d'acer soldats d'alta freqüència - Tractament del producte acabat http://ca.zhengdapipe.com/uploads/33181/info/n2024091109234848b37.jpg http://ca.zhengdapipe.com/info/flying-cut-100342820.html Procés de producció de tubs d'acer soldats d'alta freqüència - Flying Cut http://ca.zhengdapipe.com/uploads/33181/info/n20240911083503c33d9.jpg http://ca.zhengdapipe.com/info/what-is-ultrasonic-flaw-detection-100342813.html Què és la detecció de defectes per ultrasons http://ca.zhengdapipe.com/uploads/33181/info/n20240911082512e15f3.jpg http://ca.zhengdapipe.com/info/forming-process-100342831.html Com garantir la qualitat de les canonades d'acer soldades d'alta freqüència - procés de conformació http://ca.zhengdapipe.com/uploads/33181/info/n20240913083304fc32a.jpg http://ca.zhengdapipe.com/info/welding-process-100342821.html Com garantir la qualitat de les canonades d'acer soldades d'alta freqüència - Procés de soldadura http://ca.zhengdapipe.com/uploads/33181/info/n20240913082946454d1.jpg http://ca.zhengdapipe.com/info/equipment-accuracy-and-stability-100342822.html Com garantir la qualitat de les canonades d'acer soldades d'alta freqüència: precisió i estabilitat de l'equip http://ca.zhengdapipe.com/uploads/33181/info/n20240913082526decf3.jpg http://ca.zhengdapipe.com/info/how-to-ensure-the-quality-of-high-frequency-we-100342818.html Com garantir la qualitat de les canonades d'acer soldades d'alta freqüència: selecció de matèries primeres http://ca.zhengdapipe.com/uploads/33181/info/n2024091308211600b31.jpg http://ca.zhengdapipe.com/info/how-to-conduct-quality-control-for-high-freque-100342815.html Com dur a terme el control de qualitat per a canonades d'acer soldades d'alta freqüència? http://ca.zhengdapipe.com/uploads/33181/info/n20240913081841fe78b.jpg http://ca.zhengdapipe.com/info/physical-properties-tests-100342825.html Assajos requerits per a tubs d'acer soldats d'alta freqüència - Assajos de propietats físiques http://ca.zhengdapipe.com/uploads/33181/info/n202409140923286bf3c.jpg http://ca.zhengdapipe.com/info/geometric-dimension-and-shape-inspection-100342827.html Proves necessàries per a tubs d'acer soldats d'alta freqüència: inspecció de dimensions i forma geomètriques http://ca.zhengdapipe.com/uploads/33181/info/n2024091409175691636.jpg http://ca.zhengdapipe.com/info/tests-required-for-high-frequency-welded-steel-100342824.html Assajos requerits per a tubs d'acer soldats d'alta freqüència - Anàlisi de la composició química http://ca.zhengdapipe.com/uploads/33181/info/n2024091409131618fe4.jpg http://ca.zhengdapipe.com/info/personnel-qualifications-100342823.html Com garantir la qualitat dels tubs d'acer soldats d'alta freqüència - Qualificacions del personal http://ca.zhengdapipe.com/uploads/33181/info/n202409140828184d5ff.jpg http://ca.zhengdapipe.com/info/cold-bending-process-100342819.html Com garantir la qualitat dels tubs d'acer soldats d'alta freqüència: procés de plegat en fred http://ca.zhengdapipe.com/uploads/33181/info/n202409140825047bae5.jpg http://ca.zhengdapipe.com/info/common-issues-in-high-frequency-welded-round-p-100342829.html Problemes comuns en la producció de canonades rodones soldades d'alta freqüència - Cracking de juntes de soldadura http://ca.zhengdapipe.com/uploads/33181/info/n20240918114015e1bfa.jpg http://ca.zhengdapipe.com/info/what-is-the-most-crucial-step-in-the-productio-100342835.html Quin és el pas més crucial en el procés de producció de canonades rodones soldades d'alta freqüència? Per què? http://ca.zhengdapipe.com/uploads/33181/info/n202409181135509d832.jpg http://ca.zhengdapipe.com/info/what-is-a-high-frequency-welded-round-pipe-ar-100342826.html Què és una canonada rodona soldada d'alta freqüència? Hi ha altres noms per a això? http://ca.zhengdapipe.com/uploads/33181/info/n20240918113306599c8.jpg http://ca.zhengdapipe.com/info/other-tests-required-for-high-frequency-welded-100342834.html Altres proves necessàries per a canonades d'acer soldades d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202409181124045178d.jpg http://ca.zhengdapipe.com/info/non-destructive-inspection-100342830.html Proves necessàries per a canonades d'acer soldades d'alta freqüència - Inspecció no destructiva http://ca.zhengdapipe.com/uploads/33181/info/n2024091811204235a82.jpg http://ca.zhengdapipe.com/info/motor-failure-100622459.html Problemes comuns en la producció de tubs rodons soldats d'alta freqüència - Falla del motor http://ca.zhengdapipe.com/uploads/33181/info/n20240919100910654a5.jpg http://ca.zhengdapipe.com/info/overlap-welding-100622455.html Problemes comuns en la producció de canonades rodones soldades d'alta freqüència - soldadura per solapament http://ca.zhengdapipe.com/uploads/33181/info/n20240919100449f5f7f.jpg http://ca.zhengdapipe.com/info/blowholes-100622460.html Problemes comuns en la producció de canonades rodones soldades d'alta freqüència - forats http://ca.zhengdapipe.com/uploads/33181/info/n2024091910014899716.jpg http://ca.zhengdapipe.com/info/insufficient-fusion-100622454.html Problemes comuns en la producció de tubs rodons soldats d'alta freqüència: fusió insuficient http://ca.zhengdapipe.com/uploads/33181/info/n20240919095612b0fa7.jpg http://ca.zhengdapipe.com/info/inclusions-in-weld-seam-100622469.html Problemes comuns en la producció de canonades rodones soldades d'alta freqüència: inclusions a la costura de soldadura http://ca.zhengdapipe.com/uploads/33181/info/n20240919094905b613a.jpg http://ca.zhengdapipe.com/info/raw-material-lssues-100622462.html Problemes comuns en la producció de canonades rodones soldades d'alta freqüència: qüestions de matèries primeres http://ca.zhengdapipe.com/uploads/33181/info/n20240920092856829c4.jpg http://ca.zhengdapipe.com/info/improper-positioning-of-induction-coil-and-mp-100622458.html Problemes comuns en la producció de canonades rodones soldades d'alta freqüència: col·locació inadequada de la bobina d'inducció i la impedància http://ca.zhengdapipe.com/uploads/33181/info/n202409200831543c877.jpg http://ca.zhengdapipe.com/info/improper-welding-parameter-settings-100622461.html Problemes comuns en la producció de canonades rodones soldades d'alta freqüència: paràmetres de soldadura inadequats http://ca.zhengdapipe.com/uploads/33181/info/n2024092008231625db9.jpg http://ca.zhengdapipe.com/info/oil-pump-malfunction-100622457.html Problemes comuns en la producció de canonades rodones soldades d'alta freqüència - Mal funcionament de la bomba d'oli http://ca.zhengdapipe.com/uploads/33181/info/n2024092008201615d10.jpg http://ca.zhengdapipe.com/info/mechanical-component-wear-100622456.html Problemes comuns en la producció de canonades rodones soldades d'alta freqüència: desgast dels components mecànics http://ca.zhengdapipe.com/uploads/33181/info/n20240920081557f4b81.jpg http://ca.zhengdapipe.com/info/how-to-solve-r-corner-cracking-in-high-frequen-100622464.html Com resoldre l'esquerda de la cantonada R en la producció de tubs quadrats soldats d'alta freqüència: selecció de material i control de qualitat http://ca.zhengdapipe.com/uploads/33181/info/n2024092214481806ff8.jpg http://ca.zhengdapipe.com/info/distinction-in-application-fields-100622466.html Diferències entre tubs quadrats soldats d'alta freqüència i tubs rodons - Distinció en camps d'aplicació http://ca.zhengdapipe.com/uploads/33181/info/n20240922144412c8ca7.jpg http://ca.zhengdapipe.com/info/distinction-in-performance-characteristics-100622465.html Diferències entre tubs quadrats soldats d'alta freqüència i tubs rodons - Distinció en característiques de rendiment http://ca.zhengdapipe.com/uploads/33181/info/n2024092214403005bf7.jpg http://ca.zhengdapipe.com/info/differences-between-high-frequency-welded-squa-100622470.html Diferències entre tubs quadrats soldats d'alta freqüència i tubs rodons - Distinció en processos de producció http://ca.zhengdapipe.com/uploads/33181/info/n202409221436062c0d7.jpg http://ca.zhengdapipe.com/info/what-is-high-frequency-welded-square-tube-doe-100622467.html Què és el tub quadrat soldat d'alta freqüència? Té algun altre nom? http://ca.zhengdapipe.com/uploads/33181/info/n20240922143322f086d.jpg http://ca.zhengdapipe.com/info/equipment-maintenance-100622638.html Com resoldre la distorsió en la producció de tubs quadrats soldats d'alta freqüència - Manteniment d'equips http://ca.zhengdapipe.com/uploads/33181/info/n20240923111501aece4.jpg http://ca.zhengdapipe.com/info/how-to-solve-distortion-in-high-frequency-weld-100622636.html Com resoldre la distorsió en la producció de tubs quadrats soldats d'alta freqüència - Optimització del procés de producció https://img01.v15cdn.com/gallery/4x3/109.webp http://ca.zhengdapipe.com/info/post-processing-and-maintenance-100622637.html Com resoldre l'esquerda de la cantonada R en la producció de tubs quadrats soldats d'alta freqüència: postprocessament i manteniment http://ca.zhengdapipe.com/uploads/33181/info/n20240923111009c8421.jpg http://ca.zhengdapipe.com/info/design-and-structural-improvements-100622635.html Com resoldre l'esquerda de la cantonada R en la producció de tubs quadrats soldats d'alta freqüència: millores de disseny i estructurals http://ca.zhengdapipe.com/uploads/33181/info/n2024092311072353384.jpg http://ca.zhengdapipe.com/info/production-process-optimization-100622634.html Com resoldre l'esquerda de la cantonada R en la producció de tubs quadrats soldats d'alta freqüència - Optimització del procés de producció http://ca.zhengdapipe.com/uploads/33181/info/n202409231104248f666.jpg http://ca.zhengdapipe.com/info/what-are-the-differences-in-the-production-of-100934555.html Quines diferències hi ha en la producció de canonades soldades en espiral? http://ca.zhengdapipe.com/uploads/33181/info/n202409240837050fd3d.jpg http://ca.zhengdapipe.com/info/what-equipment-is-required-for-spiral-welded-p-100934550.html Quins equips es necessiten per a la producció de canonades soldades en espiral? I quins són els principis d'aquests equips? http://ca.zhengdapipe.com/uploads/33181/info/n2024092408333355aac.jpg http://ca.zhengdapipe.com/info/what-raw-materials-are-needed-for-spiral-welde-100934539.html Quines matèries primeres es necessiten per a la producció de canonades soldades en espiral? http://ca.zhengdapipe.com/uploads/33181/info/n20240924082940c4665.jpg http://ca.zhengdapipe.com/info/what-is-spiral-welded-pipe-are-there-any-othe-100934535.html Què és el tub soldat en espiral? Hi ha altres noms per a això? http://ca.zhengdapipe.com/uploads/33181/info/n202409240826420fbd7.jpg http://ca.zhengdapipe.com/info/how-to-correct-the-distortion-in-the-productio-100934545.html Com corregir la distorsió en la producció de tubs quadrats soldats d'alta freqüència? http://ca.zhengdapipe.com/uploads/33181/info/n20240924081621df060.jpg http://ca.zhengdapipe.com/info/what-is-the-function-of-trimming-100934551.html Quina és la funció de retallar? http://ca.zhengdapipe.com/uploads/33181/info/n20240925085912c685f.jpg http://ca.zhengdapipe.com/info/what-is-the-function-of-shearing-and-butt-weld-100934548.html Quina és la funció de la cisalla i la soldadura a tope? http://ca.zhengdapipe.com/uploads/33181/info/n202409250852237f09f.jpg http://ca.zhengdapipe.com/info/what-is-the-function-of-leveling-100934566.html Quina és la funció de l'anivellament? http://ca.zhengdapipe.com/uploads/33181/info/n20240925084950d2b77.jpg http://ca.zhengdapipe.com/info/what-is-the-function-of-loading-and-uncoiling-100934549.html Quina és la funció de carregar i desenrotllar? http://ca.zhengdapipe.com/uploads/33181/info/n20240925084726c55ad.jpg http://ca.zhengdapipe.com/info/what-are-the-processes-involved-in-the-product-100934543.html Quins són els processos implicats en la producció de canonades soldades en espiral? http://ca.zhengdapipe.com/uploads/33181/info/n2024092508441401d7e.jpg http://ca.zhengdapipe.com/info/what-is-the-function-of-external-welding-100934562.html Quina és la funció de la soldadura externa? http://ca.zhengdapipe.com/uploads/33181/info/n2024092608390211b79.jpg http://ca.zhengdapipe.com/info/what-is-the-function-of-internal-welding-100934586.html Quina és la funció de la soldadura interna? http://ca.zhengdapipe.com/uploads/33181/info/n202409260836582a4d9.jpg http://ca.zhengdapipe.com/info/what-is-the-forming-angle-100934577.html Quin és l'angle de formació? http://ca.zhengdapipe.com/uploads/33181/info/n20240926083415f2ae6.jpg http://ca.zhengdapipe.com/info/what-is-the-function-of-forming-100934556.html Quina és la funció de formar? http://ca.zhengdapipe.com/uploads/33181/info/n202409260830189b6b6.jpg http://ca.zhengdapipe.com/info/what-is-the-function-of-the-delivery-mechanism-100934559.html Quina és la funció del mecanisme de lliurament? http://ca.zhengdapipe.com/uploads/33181/info/n202409260827420b3c0.jpg http://ca.zhengdapipe.com/info/what-is-the-role-of-chamfering-100934574.html Quin és el paper del xamfranat? http://ca.zhengdapipe.com/uploads/33181/info/n2024092708585175b8e.jpg http://ca.zhengdapipe.com/info/what-is-the-role-of-repair-welding-100934564.html Quin és el paper de la soldadura de reparació? http://ca.zhengdapipe.com/uploads/33181/info/n202409270855249d0e3.jpg http://ca.zhengdapipe.com/info/what-is-the-role-of-slag-removal-100934565.html Quina és la funció de l'eliminació d'escòries? http://ca.zhengdapipe.com/uploads/33181/info/n20240927085315115e2.jpg http://ca.zhengdapipe.com/info/what-is-the-role-of-initial-inspection-of-pipe-100934571.html Quin és el paper de la inspecció inicial del tall de canonades http://ca.zhengdapipe.com/uploads/33181/info/n20240927085103af552.jpg http://ca.zhengdapipe.com/info/what-parameters-need-to-be-adjusted-for-intern-100934569.html Quins paràmetres s'han d'ajustar per a la soldadura interna i externa http://ca.zhengdapipe.com/uploads/33181/info/n2024092708381103566.jpg http://ca.zhengdapipe.com/info/solutions-to-porosity-defects-100934573.html Solucions als defectes de porositat http://ca.zhengdapipe.com/uploads/33181/info/n20240930143405f68e8.jpg http://ca.zhengdapipe.com/info/causes-of-porosity-defects-100934576.html Causes dels defectes de porositat http://ca.zhengdapipe.com/uploads/33181/info/n20240930142729ab734.jpg http://ca.zhengdapipe.com/info/bevel-and-root-face-100934579.html Què s'ha de prestar atenció durant el xamfranat: bisell i cara de l'arrel http://ca.zhengdapipe.com/uploads/33181/info/n20240930093825777c9.jpg http://ca.zhengdapipe.com/info/hard-spots-100934584.html Què s'ha de prestar atenció durant el xamfranat - Punts durs http://ca.zhengdapipe.com/uploads/33181/info/n202409300901128c0cf.jpg http://ca.zhengdapipe.com/info/what-should-be-paid-attention-to-during-chamfe-100934572.html Què s'ha de prestar atenció durant el xamfranat - Laminació i inclusió http://ca.zhengdapipe.com/uploads/33181/info/n2024093008575050ecd.jpg http://ca.zhengdapipe.com/info/incomplete-penetration-and-lack-of-fusion-defe-101142317.html Penetració incompleta i manca de defectes de fusió http://ca.zhengdapipe.com/uploads/33181/info/n2024100814212676fb6.jpg http://ca.zhengdapipe.com/info/solutions-to-undercut-defects-101142318.html Solucions als defectes de socavació http://ca.zhengdapipe.com/uploads/33181/info/n202410081415465ea65.jpg http://ca.zhengdapipe.com/info/causes-of-undercut-defects-101142315.html Causes dels defectes de socavació http://ca.zhengdapipe.com/uploads/33181/info/n202410081413053e0d6.jpg http://ca.zhengdapipe.com/info/solutions-to-slag-inclusion-defects-101142314.html Solucions als defectes d'inclusió d'escòries https://img01.v15cdn.com/gallery/4x3/226.webp http://ca.zhengdapipe.com/info/causes-of-slag-inclusion-defects-101142316.html Causes dels defectes d'inclusió d'escòries http://ca.zhengdapipe.com/uploads/33181/info/n20241008140638289a1.jpg http://ca.zhengdapipe.com/info/production-process-control-101228322.html Proves necessàries per garantir la qualitat de les canonades d'acer soldades en espiral - Control del procés de producció http://ca.zhengdapipe.com/uploads/33181/info/n20241009112608cde96.jpg http://ca.zhengdapipe.com/info/tests-required-to-ensure-the-quality-of-spiral-101228319.html Proves necessàries per garantir la qualitat de les canonades d'acer soldades en espiral: selecció i control de matèries primeres http://ca.zhengdapipe.com/uploads/33181/info/n202410091122583e93b.jpg http://ca.zhengdapipe.com/info/solutions-to-crack-defects-101228324.html Solucions als defectes de crack http://ca.zhengdapipe.com/uploads/33181/info/n20241009111526917b8.jpg http://ca.zhengdapipe.com/info/crack-defect-101228317.html Defecte d'esquerda http://ca.zhengdapipe.com/uploads/33181/info/n20241009111249f3350.jpg http://ca.zhengdapipe.com/info/solutions-to-incomplete-penetration-and-incomp-101228318.html Solucions a defectes de penetració incompleta i de fusió incompleta http://ca.zhengdapipe.com/uploads/33181/info/n20241009111013f48a5.jpg http://ca.zhengdapipe.com/info/why-conduct-an-x-ray-inspection-101228325.html Per què fer una inspecció de raigs X? http://ca.zhengdapipe.com/uploads/33181/info/n2024101111112246fd6.jpg http://ca.zhengdapipe.com/info/why-conduct-a-static-hydraulic-test-101228323.html Per què fer una prova hidràulica estàtica? http://ca.zhengdapipe.com/uploads/33181/info/n20241011110856ce223.jpg http://ca.zhengdapipe.com/info/other-quality-control-measures-101228320.html Proves necessàries per garantir la qualitat de les canonades soldades en espiral - Altres mesures de control de qualitat http://ca.zhengdapipe.com/uploads/33181/info/n202410111105065a7ca.jpg http://ca.zhengdapipe.com/info/final-product-inspection-and-quality-control-101228321.html Proves necessàries per garantir la qualitat de les canonades soldades en espiral - Inspecció final del producte i control de qualitat http://ca.zhengdapipe.com/uploads/33181/info/n2024101111014423382.jpg http://ca.zhengdapipe.com/info/weld-seam-quality-control-101228327.html Proves necessàries per garantir la qualitat de les canonades soldades en espiral - Control de qualitat de la soldadura http://ca.zhengdapipe.com/uploads/33181/info/n20241011105755cba10.jpg http://ca.zhengdapipe.com/info/what-are-the-execution-standards-for-ultrasoni-101256128.html Quins són els estàndards d'execució per a les proves d'ultrasons? http://ca.zhengdapipe.com/uploads/33181/info/n2024101209354840ceb.jpg http://ca.zhengdapipe.com/info/why-is-ultrasonic-testing-conducted-101256127.html Per què es fan proves d'ultrasons? http://ca.zhengdapipe.com/uploads/33181/info/n202410120933021107a.jpg http://ca.zhengdapipe.com/info/what-are-the-execution-standards-for-x-ray-ins-101256131.html Quins són els estàndards d'execució per a la inspecció de raigs X? http://ca.zhengdapipe.com/uploads/33181/info/n20241012092917a5b1c.jpg http://ca.zhengdapipe.com/info/what-are-the-advantages-of-television-inspecti-101256120.html Quins són els avantatges de la inspecció televisiva? http://ca.zhengdapipe.com/uploads/33181/info/n20241012092549060f6.jpg http://ca.zhengdapipe.com/info/what-are-the-inspection-methods-included-in-x-101256122.html Quins són els mètodes d'inspecció inclosos en la inspecció de raigs X? http://ca.zhengdapipe.com/uploads/33181/info/n202410120918268e874.jpg http://ca.zhengdapipe.com/info/eliminating-potential-safety-hazards-101669350.html La raó principal de la desmagnetització de canonades soldades en espiral - eliminant els possibles perills de seguretat http://ca.zhengdapipe.com/uploads/33181/info/n2024101410354892360.jpg http://ca.zhengdapipe.com/info/meeting-usage-requirements-101669348.html El motiu principal de la desmagnetització de canonades soldades en espiral és que compleix els requisits d'ús http://ca.zhengdapipe.com/uploads/33181/info/n202410141032536f7a6.jpg http://ca.zhengdapipe.com/info/ensuring-detection-accuracy-101669347.html La raó principal de la desmagnetització de canonades soldades en espiral és la garantia de la precisió de la detecció http://ca.zhengdapipe.com/uploads/33181/info/n20241014103024f086f.jpg http://ca.zhengdapipe.com/info/the-main-reason-for-demagnetization-of-spiral-101670226.html La raó principal de la desmagnetització de canonades soldades en espiral és la millora de la qualitat de la soldadura http://ca.zhengdapipe.com/uploads/33181/info/n2024101410274056dbe.jpg http://ca.zhengdapipe.com/info/why-is-demagnetization-required-for-spiral-wel-101670225.html Per què és necessària la desmagnetització per a canonades soldades en espiral? Què és la desmagnetització? http://ca.zhengdapipe.com/uploads/33181/info/n20241014102411dae88.jpg http://ca.zhengdapipe.com/info/advantages-of-hot-dip-galvanized-coating-str-101669355.html Avantatges del recobriment galvanitzat per immersió en calent - Forta resistència a la corrosió http://ca.zhengdapipe.com/uploads/33181/info/n2024101510374778974.jpg http://ca.zhengdapipe.com/info/what-is-the-value-of-hot-dip-galvanized-steel-101669356.html Quin és el valor de les canonades d'acer galvanitzat en calent? http://ca.zhengdapipe.com/uploads/33181/info/n202410151033561c276.jpg http://ca.zhengdapipe.com/info/why-is-hot-dip-galvanizing-applied-to-the-surf-101669349.html Per què s'aplica la galvanització en calent a les superfícies dels productes d'acer? http://ca.zhengdapipe.com/uploads/33181/info/n202410151030506d85c.jpg http://ca.zhengdapipe.com/info/what-is-the-principle-of-hot-dip-galvanizing-101669354.html Quin és el principi de galvanització en calent? http://ca.zhengdapipe.com/uploads/33181/info/n20241015102636cea3f.jpg http://ca.zhengdapipe.com/info/what-is-hot-dip-galvanizing-101669352.html Què és la galvanització en calent? http://ca.zhengdapipe.com/uploads/33181/info/n20241015102425dc819.jpg http://ca.zhengdapipe.com/info/advantages-of-hot-dip-galvanizing-strong-ada-101855935.html Avantatges de la galvanització en calent - Forta adaptabilitat https://img01.v15cdn.com/gallery/4x3/92.webp http://ca.zhengdapipe.com/info/advantages-of-hot-dip-galvanizing-simple-pro-101853242.html Avantatges de la galvanització en calent: procés senzill, alta eficiència http://ca.zhengdapipe.com/uploads/33181/info/n202410160931555a9b2.jpg http://ca.zhengdapipe.com/info/advantages-of-hot-dip-galvanized-coating-com-101853246.html Avantatges del recobriment galvanitzat per immersió en calent: protecció integral http://ca.zhengdapipe.com/uploads/33181/info/n20241016084534efa43.jpg http://ca.zhengdapipe.com/info/strong-adhesion-between-coating-and-substrate-101853238.html Avantatges del recobriment galvanitzat per immersió en calent - Forta adhesió entre el recobriment i el substrat http://ca.zhengdapipe.com/uploads/33181/info/n20241016084308ea778.jpg http://ca.zhengdapipe.com/info/advantages-of-hot-dip-galvanized-coating-lon-101853248.html Avantatges del recobriment galvanitzat per immersió en calent - Durabilitat de llarga durada http://ca.zhengdapipe.com/uploads/33181/info/n202410160839350b5c1.jpg http://ca.zhengdapipe.com/info/what-are-the-main-methods-of-hot-dip-galvanizi-101853298.html Quins són els principals mètodes de galvanització en calent actualment? I quins mètodes s'utilitzen generalment per galvanitzar tubs d'acer en calent? http://ca.zhengdapipe.com/uploads/33181/info/n2024101708241827fa9.jpg http://ca.zhengdapipe.com/info/advantages-of-hot-dip-galvanized-coating-enh-101853257.html Avantatges del recobriment galvanitzat per immersió en calent - Resistència del producte millorada http://ca.zhengdapipe.com/uploads/33181/info/n20241017082156544c9.jpg http://ca.zhengdapipe.com/info/advantages-of-hot-dip-galvanized-coating-abr-101853297.html Avantatges del recobriment galvanitzat per immersió en calent: resistència a l'abrasió i resistència a altes temperatures http://ca.zhengdapipe.com/uploads/33181/info/n202410170819407593b.jpg http://ca.zhengdapipe.com/info/advantages-of-hot-dip-galvanized-coating-env-101853269.html Avantatges del recobriment galvanitzat per immersió en calent: protecció del medi ambient i estalvi d'energia http://ca.zhengdapipe.com/uploads/33181/info/n20241017081718cb556.jpg http://ca.zhengdapipe.com/info/advantages-of-hot-dip-galvanized-coating-aes-101853247.html Avantatges del recobriment galvanitzat en calent - Atractiu estètic http://ca.zhengdapipe.com/uploads/33181/info/n2024101708145677d8d.jpg http://ca.zhengdapipe.com/info/what-are-potassium-dichromate-and-sodium-dichr-101853259.html Què són el dicromat de potassi i el dicromat de sodi? http://ca.zhengdapipe.com/uploads/33181/info/n2024101808400602f8c.jpg http://ca.zhengdapipe.com/info/what-are-chromic-anhydride-and-chromic-acid-101853258.html Què són l'anhídrid cròmic i l'àcid cròmic? http://ca.zhengdapipe.com/uploads/33181/info/n2024101808372158908.jpg http://ca.zhengdapipe.com/info/what-is-ammonium-chloride-101853273.html Què és el clorur d'amoni? http://ca.zhengdapipe.com/uploads/33181/info/n20241018083243ff40a.jpg http://ca.zhengdapipe.com/info/what-is-zinc-chloride-101853256.html Què és el clorur de zinc? http://ca.zhengdapipe.com/uploads/33181/info/n202410180830071e566.jpg http://ca.zhengdapipe.com/info/what-are-the-application-areas-of-hot-dip-galv-101853266.html Quines són les àrees d'aplicació de la galvanització en calent? http://ca.zhengdapipe.com/uploads/33181/info/n2024101808274117dda.jpg http://ca.zhengdapipe.com/info/reducing-production-costs-and-process-complexi-101853267.html Paper de l'aliatge de zinc-níquel en la galvanització per immersió en calent: reducció dels costos de producció i la complexitat del procés http://ca.zhengdapipe.com/uploads/33181/info/n202410201057405a46c.jpg http://ca.zhengdapipe.com/info/role-of-zinc-nickel-alloy-in-hot-dip-galvanizi-101853268.html Paper de l'aliatge de zinc-níquel en la galvanització per immersió en calent: millora uniformement les propietats del recobriment http://ca.zhengdapipe.com/uploads/33181/info/n202410201054204638c.jpg http://ca.zhengdapipe.com/info/mitigating-issues-of-excessive-coating-thickne-101853270.html El paper de l'aliatge de zinc-níquel en la galvanització per immersió en calent: mitigació de problemes d'excés de gruix de recobriment i mala adhesió http://ca.zhengdapipe.com/uploads/33181/info/n20241020102622b652a.jpg http://ca.zhengdapipe.com/info/the-role-of-zinc-nickel-alloy-in-hot-dip-galva-101853262.html El paper de l'aliatge de zinc-níquel en la galvanització en calent: millora la resistència a la corrosió i l'adhesió del recobriment http://ca.zhengdapipe.com/uploads/33181/info/n20241020102218dd04b.jpg http://ca.zhengdapipe.com/info/what-is-a-zinc-aluminum-alloy-block-and-why-i-101853264.html Què és un bloc d'aliatge de zinc-alumini i per què s'utilitza en la galvanització en calent? http://ca.zhengdapipe.com/uploads/33181/info/n20241020101710358e9.jpg http://ca.zhengdapipe.com/info/what-is-electrochemical-corrosion-102038304.html Què és la corrosió electroquímica? http://ca.zhengdapipe.com/uploads/33181/info/n2024102108382349d4a.jpg http://ca.zhengdapipe.com/info/what-is-chemical-corrosion-102038301.html Què és la corrosió química? http://ca.zhengdapipe.com/uploads/33181/info/n2024102108351241336.jpg http://ca.zhengdapipe.com/info/what-is-metal-corrosion-102038309.html Què és la corrosió metàl·lica? http://ca.zhengdapipe.com/uploads/33181/info/n20241021083250318e5.jpg http://ca.zhengdapipe.com/info/what-are-the-corrosion-phenomena-associated-wi-102038308.html Quins són els fenòmens de corrosió associats a la galvanització en calent? http://ca.zhengdapipe.com/uploads/33181/info/n20241021083018e1da6.jpg http://ca.zhengdapipe.com/info/enhancing-coating-uniformity-and-aesthetics-102038300.html Paper de l'aliatge de zinc-níquel en la galvanització per immersió en calent: millora la uniformitat i l'estètica del recobriment http://ca.zhengdapipe.com/uploads/33181/info/n20241021082646e0346.jpg http://ca.zhengdapipe.com/info/what-are-the-causes-of-corrosion-of-zinc-coati-102038318.html Quines són les causes de la corrosió dels recobriments de zinc a l'aire lliure i quins són els productes de corrosió? http://ca.zhengdapipe.com/uploads/33181/info/n20241022090957c3320.jpg http://ca.zhengdapipe.com/info/how-does-the-corrosion-behavior-of-zinc-coatin-102038307.html Com difereix el comportament a la corrosió dels recobriments de zinc en atmosferes no àcides/alcalines versus atmosferes àcides/alcalines? http://ca.zhengdapipe.com/uploads/33181/info/n20241022090425aa510.jpg http://ca.zhengdapipe.com/info/methods-to-remove-white-rust-102038314.html Mètodes per eliminar l'òxid blanc http://ca.zhengdapipe.com/uploads/33181/info/n202410220901358432b.jpg http://ca.zhengdapipe.com/info/methods-to-prevent-white-rust-102038306.html Mètodes per prevenir l'òxid blanc http://ca.zhengdapipe.com/uploads/33181/info/n202410220858460c787.jpg http://ca.zhengdapipe.com/info/what-is-the-white-rust-of-galvanized-coatings-102038305.html Què és l'òxid blanc dels recobriments galvanitzats? Com prevenir-lo i eliminar-lo? http://ca.zhengdapipe.com/uploads/33181/info/n20241022083422246d4.jpg http://ca.zhengdapipe.com/info/how-does-zinc-coating-corrode-in-distilled-wat-102038325.html Com es corroeix el recobriment de zinc a l'aigua destil·lada? http://ca.zhengdapipe.com/uploads/33181/info/n2024102308354607c5e.jpg http://ca.zhengdapipe.com/info/how-does-zinc-coating-corrode-in-hot-water-102038317.html Com es corroeix el recobriment de zinc a l'aigua calenta? http://ca.zhengdapipe.com/uploads/33181/info/n20241023083320dbf64.jpg http://ca.zhengdapipe.com/info/how-does-zinc-coating-corrode-in-cold-tap-wate-102038322.html Com es corroeix el recobriment de zinc a l'aigua freda de l'aixeta? http://ca.zhengdapipe.com/uploads/33181/info/n202410230829538f1a0.jpg http://ca.zhengdapipe.com/info/why-does-zinc-coating-corrode-faster-in-indust-102038313.html Per què el recobriment de zinc es corroeix més ràpidament a l'aire industrial que conté sofre? http://ca.zhengdapipe.com/uploads/33181/info/n20241023082653311e3.jpg http://ca.zhengdapipe.com/info/what-are-the-causes-of-corrosion-of-zinc-coat-102038310.html Quines són les causes de la corrosió dels recobriments de zinc a l'interior? Quins són els productes de corrosió? http://ca.zhengdapipe.com/uploads/33181/info/n202410230822417e676.jpg http://ca.zhengdapipe.com/info/how-does-the-zinc-coating-corrode-in-oilfields-102147048.html Com es corroeix el recobriment de zinc als jaciments petroliers? http://ca.zhengdapipe.com/uploads/33181/info/n20241024090522997a6.jpg http://ca.zhengdapipe.com/info/how-does-the-zinc-layer-corrode-on-buildings-102147047.html Com es corroeix la capa de zinc als edificis? http://ca.zhengdapipe.com/uploads/33181/info/n202410240839487259f.jpg http://ca.zhengdapipe.com/info/how-does-the-zinc-layer-corrode-in-soil-102147056.html Com es corroeix la capa de zinc al sòl? http://ca.zhengdapipe.com/uploads/33181/info/n202410240836592ba18.jpg http://ca.zhengdapipe.com/info/how-does-the-zinc-layer-corrode-in-seawater-102147068.html Com es corroeix la capa de zinc a l'aigua de mar? http://ca.zhengdapipe.com/uploads/33181/info/n2024102408340833060.jpg http://ca.zhengdapipe.com/info/what-are-the-optimal-temperature-and-concentra-102147052.html Quina és la temperatura i la concentració òptimes per al decapat àcid? http://ca.zhengdapipe.com/uploads/33181/info/n2024102508534583630.jpg http://ca.zhengdapipe.com/info/why-is-acid-pickling-necessary-for-steel-tube-102147055.html Per què és necessari el decapat àcid per a les palanques de tubs d'acer? http://ca.zhengdapipe.com/uploads/33181/info/n20241025085058d8b9f.jpg http://ca.zhengdapipe.com/info/what-are-the-factors-that-affect-the-lifespan-102147057.html Quins són els factors que afecten la vida útil dels recobriments de zinc galvanitzat en calent i quin és el rang general? http://ca.zhengdapipe.com/uploads/33181/info/n2024102508283746277.jpg http://ca.zhengdapipe.com/info/how-does-zinc-coating-provide-corrosion-protec-102147051.html Com el recobriment de zinc proporciona protecció contra la corrosió? http://ca.zhengdapipe.com/uploads/33181/info/n20241025082304f7e0c.jpg http://ca.zhengdapipe.com/info/what-are-the-main-factors-determining-the-corr-102147059.html Quins són els principals factors que determinen la taxa de corrosió dels recobriments de zinc? http://ca.zhengdapipe.com/uploads/33181/info/n202410250815559e776.jpg http://ca.zhengdapipe.com/info/why-does-the-corrosion-of-the-zinc-coating-ini-102147045.html Per què la corrosió del recobriment de zinc es produeix inicialment més ràpid que després? http://ca.zhengdapipe.com/uploads/33181/info/n20241025081508389f4.jpg http://ca.zhengdapipe.com/info/what-quality-defects-are-prone-to-occur-during-102232451.html Quins defectes de qualitat són propensos a produir-se durant el procés de decapat i com es poden evitar? http://ca.zhengdapipe.com/uploads/33181/info/n20241026154030b85c3.jpg http://ca.zhengdapipe.com/info/why-are-steel-pipes-sometimes-soaked-in-hot-wa-102232452.html Per què les canonades d'acer de vegades es remullen amb aigua calenta abans de decapar en algunes operacions? http://ca.zhengdapipe.com/uploads/33181/info/n20241026153000417a7.jpg http://ca.zhengdapipe.com/info/the-internal-and-external-factors-affecting-th-102232453.html Els factors interns i externs que afecten el decapatge de canonades d'acer es poden dividir principalment en http://ca.zhengdapipe.com/uploads/33181/info/n2024102615273131bfd.jpg http://ca.zhengdapipe.com/info/what-is-the-impact-of-the-content-of-ferric-ch-102232450.html Quin és l'impacte del contingut de clorur fèrric (i clorur fèrric) en la solució de decapat d'àcid clorhídric en el procés de decapat? http://ca.zhengdapipe.com/uploads/33181/info/n2024102615213948bc5.jpg http://ca.zhengdapipe.com/info/what-are-the-advantages-and-disadvantages-of-p-102232460.html Quins són els avantatges i els desavantatges del decapat de canonades d'acer amb àcid clorhídric? Avantatges: http://ca.zhengdapipe.com/uploads/33181/info/n20241026151928591c2.jpg http://ca.zhengdapipe.com/info/heating-method-for-pickling-solution-steam-n-102232475.html Mètode d'escalfament per a la solució de decapat - Mètode d'escalfament de broquet de vapor http://ca.zhengdapipe.com/uploads/33181/info/n202410271503570af6c.jpg http://ca.zhengdapipe.com/info/heating-method-for-pickling-solution-direct-102232459.html Mètode d'escalfament per a la solució de decapat - Mètode d'escalfament directe de vapor http://ca.zhengdapipe.com/uploads/33181/info/n202410271501386728f.jpg http://ca.zhengdapipe.com/info/what-are-the-heating-methods-for-pickling-solu-102232454.html Quins són els mètodes de calefacció per a les solucions de decapat i quins són els seus avantatges i desavantatges? http://ca.zhengdapipe.com/uploads/33181/info/n20241027145909c3f4e.jpg http://ca.zhengdapipe.com/info/why-are-there-obvious-clusters-of-corrosion-pi-102232458.html Per què hi ha grups evidents de fosses de corrosió a la superfície de canonades d'acer soldades després d'un decapat excessiu? http://ca.zhengdapipe.com/uploads/33181/info/n202410271452339caa3.jpg http://ca.zhengdapipe.com/info/what-is-acid-embrittlement-or-hydrogen-embrit-102232449.html Què és la fragilitat àcida (o fragilitat per hidrogen) i com es produeix? https://img01.v15cdn.com/gallery/4x3/289.webp http://ca.zhengdapipe.com/info/heating-method-for-pickling-solution-hot-wat-102232462.html Mètode de calefacció per a la solució de decapat - Mètode de canonada d'escalfament d'aigua calenta http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/direct-heating-with-hot-exhaust-gas-102232469.html Mètode de calefacció per a la solució de decapat - Escalfament directe amb gas d'escapament calent http://ca.zhengdapipe.com/uploads/33181/info/n20241028082755870ff.jpg http://ca.zhengdapipe.com/info/heating-method-for-pickling-solution-immersi-102232470.html Mètode d'escalfament per a la solució de decapat - Mètode d'escalfament amb flama d'immersió http://ca.zhengdapipe.com/uploads/33181/info/n20241028082542cea08.jpg http://ca.zhengdapipe.com/info/heating-method-for-pickling-solution-electri-102232468.html Mètode de calefacció per a la solució de decapat - Mètode de l'element calefactor elèctric http://ca.zhengdapipe.com/uploads/33181/info/n2024102808233408dc7.jpg http://ca.zhengdapipe.com/info/heating-method-for-pickling-solution-steam-h-102232457.html Mètode d'escalfament per a la solució de decapat - Mètode d'escalfament de canonades de calefacció de vapor http://ca.zhengdapipe.com/uploads/33181/info/n2024102808211103f78.jpg http://ca.zhengdapipe.com/info/why-must-steel-pipes-be-rinsed-immediately-aft-102232467.html Per què s'han d'esbandir les canonades d'acer immediatament després del decapat? http://ca.zhengdapipe.com/uploads/33181/info/n2024102909335386780.jpg http://ca.zhengdapipe.com/info/why-is-it-necessary-to-lift-and-lower-steel-pi-102232466.html Per què és necessari aixecar i baixar les canonades d'acer diverses vegades durant el decapat agrupat? http://ca.zhengdapipe.com/uploads/33181/info/n202410290930235d2aa.jpg http://ca.zhengdapipe.com/info/why-is-it-beneficial-to-oscillate-steel-pipes-102232464.html Per què és beneficiós fer oscil·lar canonades d'acer o crear un flux de solució durant el decapatge? https://img01.v15cdn.com/gallery/4x3/209.webp http://ca.zhengdapipe.com/info/why-is-the-multi-tank-pickling-method-consider-102232465.html Per què es considera que el mètode de decapat multitanc té més avantatges que el mètode d'un sol dipòsit per al decapat de canonades d'acer? http://ca.zhengdapipe.com/uploads/33181/info/n2024102909244302066.jpg http://ca.zhengdapipe.com/info/why-is-direct-steam-heating-commonly-used-for-102232463.html Per què s'utilitza habitualment l'escalfament directe de vapor per a solucions de decapat? Quins són els seus avantatges i inconvenients? http://ca.zhengdapipe.com/uploads/33181/info/n202410290922005dc27.jpg http://ca.zhengdapipe.com/info/what-are-the-main-components-of-dry-process-so-102346976.html Quins són els components principals dels dissolvents de procés sec? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-are-the-main-components-of-wet-process-fl-102346977.html Quins són els components principals del flux de procés humit? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-is-the-solvent-method-and-what-is-the-pu-102346972.html Quin és el mètode del dissolvent i quin és el propòsit d'utilitzar un dissolvent? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-is-the-purpose-of-cleaning-102346973.html Quin és l'objectiu de la neteja? http://ca.zhengdapipe.com/uploads/33181/info/n202410300847129c427.jpg http://ca.zhengdapipe.com/info/what-aspects-should-be-self-checked-during-the-102346974.html Quins aspectes s'han d'autocontrolar durant el procés de decapat àcid? http://ca.zhengdapipe.com/uploads/33181/info/n2024103008441657b38.jpg http://ca.zhengdapipe.com/info/operating-method-for-drying-chain-conveyor-m-102346981.html Mètode de funcionament per a l'assecat - Mètode de transport de cadena http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/operating-method-for-drying-rolling-steel-pi-102346980.html Mètode de funcionament per a l'assecat - Mètode de tub d'acer enrotllat http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-are-the-impacts-of-excessively-long-dryin-102346978.html Quins són els impactes d'un temps d'assecat excessivament llarg de les canonades d'acer? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-problems-can-arise-if-steel-pipes-are-not-102346979.html Quins problemes poden sorgir si les canonades d'acer no s'assequen a fons? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-determines-the-drying-temperature-102346975.html Què determina la temperatura d'assecat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-is-the-impact-of-iron-in-molten-zinc-on-h-102500300.html Quin és l'impacte del ferro en zinc fos en la galvanització en calent? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-is-the-impact-of-lead-in-molten-zinc-on-h-102500291.html Quin és l'impacte del plom en zinc fos en la galvanització en calent? Per què s'utilitza el plom com a revestiment a la part inferior de les olles de galvanització? https://img01.v15cdn.com/gallery/4x3/179.webp http://ca.zhengdapipe.com/info/what-are-the-sources-of-alloy-components-in-th-102500289.html Quines són les fonts dels components d'aliatge a l'olla de galvanització? http://ca.zhengdapipe.com/uploads/33181/info/n2024110115291320d08.jpg http://ca.zhengdapipe.com/info/what-factors-influence-the-normal-microstructu-102500290.html Quins factors influeixen en la microestructura normal dels recobriments de zinc galvanitzat? http://ca.zhengdapipe.com/uploads/33181/info/n2024110115263571a4b.jpg http://ca.zhengdapipe.com/info/how-is-zinc-securely-plated-onto-steel-102500288.html Com es xapa de manera segura el zinc sobre l'acer? http://ca.zhengdapipe.com/uploads/33181/info/n202411011524262d9fd.jpg http://ca.zhengdapipe.com/info/how-is-zinc-ash-formed-and-what-are-its-compo-102500294.html Com es formen les cendres de zinc i quins són els seus components? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-is-the-impact-of-nickel-content-in-steel-102500292.html Quin és l'impacte del contingut de níquel a les canonades d'acer i les matrius d'olles de galvanització en la galvanització en calent? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-is-the-impact-of-magnesium-in-molten-zinc-102500308.html Quin és l'impacte del magnesi en zinc fos en la galvanització en calent? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/how-do-aluminum-containing-and-aluminum-free-z-102500293.html Com es diferencien els banys de zinc que contenen alumini i els que no tenen alumini en els seus efectes de corrosió sobre el ferro? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-is-the-impact-of-aluminum-in-molten-zinc-102500295.html Quin és l'impacte de l'alumini en zinc fos en la galvanització en calent? http://ca.zhengdapipe.com/uploads/33181/info/n2024110316442865724.jpg http://ca.zhengdapipe.com/info/what-are-the-factors-that-influence-the-growth-102500305.html Quins són els factors que influeixen en la taxa de creixement de la cendra de zinc? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-impact-does-the-quality-of-zinc-aluminum-102500306.html Quin impacte té la qualitat de l'aliatge de zinc-alumini a la capa galvanitzada? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-are-the-pros-and-cons-of-adding-lead-to-z-102500296.html Quins són els avantatges i els contres d'afegir plom al líquid de zinc? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-should-the-steel-pipe-be-inclined-at-an-an-102500297.html Per què s'ha d'inclinar la canonada d'acer en un angle en entrar al bany de zinc per submergir-se i galvanitzar? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/under-what-conditions-is-zinc-dross-formed-wh-102500328.html En quines condicions es forma escoria de zinc? Quins són els seus components? Quines són les seves propietats? http://ca.zhengdapipe.com/uploads/33181/info/n20241104082316b2f78.jpg http://ca.zhengdapipe.com/info/why-is-the-product-quality-of-dry-process-hot-102500302.html Per què la qualitat del producte del procés sec de galvanització en calent és millor que la del procés humit? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-are-there-more-missed-galvanizing-spots-in-102500298.html Per què es perden més punts de galvanització a l'interior i als extrems de les canonades d'acer galvanitzat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-is-aluminum-not-added-to-the-zinc-bath-in-102500310.html Per què no s'afegeix alumini al bany de zinc en procés humit de galvanització en calent? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-do-missed-plating-spots-and-zinc-particles-102500322.html Per què apareixen fàcilment taques de revestiment i partícules de zinc perduts quan es galvanitzen canonades d'acer en líquid de zinc que conté alumini, especialment durant les etapes inicials de producció? Com resoldre aquest problema? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-methods-can-be-used-to-slow-down-the-prod-102500299.html Quins mètodes es poden utilitzar per frenar la producció de cendres de zinc? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-is-there-more-zinc-ash-on-the-molten-zinc-102500309.html Per què hi ha més cendres de zinc a la superfície de zinc fos a l'extrem de la cua de les canonades d'acer durant la galvanització en calent en comparació amb qualsevol altre lloc? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-methods-can-be-used-to-reduce-the-product-102500307.html Quins mètodes es poden utilitzar per reduir la producció de cendres de zinc? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-are-there-generally-no-zinc-flowers-on-gal-102500304.html Per què generalment no hi ha flors de zinc a les canonades d'acer galvanitzat, però són habituals a les xapes galvanitzades? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-are-zinc-ingots-always-added-directly-from-102500303.html Per què s'afegeixen sempre els lingots de zinc directament des dels dos extrems de l'olla de galvanització? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-do-the-zinc-flowers-differ-on-thin-walled-102500301.html Per què les flors de zinc es diferencien a les canonades de paret prima i de paret gruixuda sota el mateix procés i condicions de funcionament? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-impact-does-zinc-dross-have-on-the-galvan-17096549879309312.html Quin impacte té les escories de zinc a la capa galvanitzada de canonades d'acer galvanitzat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/how-is-zinc-dross-formed-and-what-are-its-com-17096550004483072.html Com es formen les escories de zinc i quins són els seus components? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-is-zinc-dross-17096549861467136.html Què és l'escoria de zinc? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-are-the-harmful-effects-of-zinc-ash-on-ho-17096549878752256.html Quins són els efectes nocius de la cendra de zinc en la galvanització en calent? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-are-the-pros-and-cons-of-frequently-skimm-17096549855339520.html Quins són els avantatges i els contres de descremar amb freqüència la cendra de zinc? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-is-it-necessary-to-significantly-increase-17096549935719424.html Per què és necessari augmentar significativament el flux de gas a l'inici de l'explosió externa i la neteja de zinc? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-is-it-preferable-to-use-superheated-steam-17096549897020416.html Per què és preferible utilitzar vapor sobreescalfat per a la neteja interna i netejar el zinc? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-is-it-necessary-to-perform-internal-and-ex-17096549896414208.html Per què és necessari realitzar un tractament de granallament i neteja interior i extern en canonades d'acer galvanitzat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-impact-does-pretreatment-before-galvanizi-17096549885748224.html Quin impacte té el pretractament abans del galvanitzat en l'adhesió de la capa galvanitzada? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-impact-does-the-temperature-of-molten-zin-17096549890253824.html Quin impacte té la temperatura del zinc fos sobre les escories de zinc? A quin contingut de ferro en zinc fos ja no s'hauria d'utilitzar? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/how-to-cool-galvanized-steel-pipes-17096549945238528.html Com refredar canonades d'acer galvanitzat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-is-water-cooling-necessary-for-galvanized-17096549907702784.html Per què és necessària la refrigeració per aigua per a canonades d'acer galvanitzat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-is-it-preferable-to-use-lightweight-alumin-17096549917369344.html Per què és preferible utilitzar rodets d'aliatge d'alumini lleuger per transportar canonades d'acer galvanitzat al llit de refrigeració després d'una granalla externa i netejar el zinc? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-parameters-determine-the-air-cooling-dura-17096549905261568.html Quins paràmetres determinen la durada de la refrigeració per aire de les canonades d'acer galvanitzat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-is-air-cooling-necessary-after-the-interna-17096549907162112.html Per què és necessària la refrigeració per aire després del tractament de granallament intern i extern de canonades d'acer galvanitzat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-do-galvanized-steel-pipes-sometimes-develo-17096549931213824.html Per què les canonades d'acer galvanitzat de vegades desenvolupen esquerdes de tortuga visibles a la seva superfície després de refredar-se per aigua? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-do-some-galvanized-steel-pipes-bend-more-s-17096549930148864.html Per què algunes canonades d'acer galvanitzat es dobleguen més greument després de refredar-se per aigua? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/how-to-prevent-galvanized-steel-pipes-from-ben-17096549939094528.html Com evitar que les canonades d'acer galvanitzat es dobleguin a causa de la refrigeració per aigua? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-is-strict-control-necessary-for-the-temper-17096549998535680.html Per què és necessari un control estricte de la temperatura de l'aigua de refrigeració utilitzada per refredar canonades d'acer galvanitzat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-are-there-specific-requirements-for-the-wa-17096550020047872.html Per què hi ha requisits específics per a la qualitat de l'aigua quan es refreden canonades d'acer galvanitzat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/formula-for-chromate-purification-solution-17096550059385856.html Fórmula per a la solució de purificació de cromats http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-are-the-methods-of-surface-passivation-tr-17096550029501440.html Quins són els mètodes de tractament de passivació superficial i quin és el més utilitzat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-is-surface-passivation-treatment-necessary-17096549998814208.html Per què és necessari un tractament de passivació superficial per als recobriments galvanitzats? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-is-passivation-and-how-is-it-defined-17096549957903360.html Què és la passivació i com es defineix? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-should-the-water-droplets-inside-and-outsi-17096549947712512.html Per què s'hauria de deixar que les gotes d'aigua dins i fora de la canonada d'acer galvanitzat refredat es drenin tant com sigui possible? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-is-the-temperature-of-the-chromate-passiva-17117038485152768.html Per què es controla estrictament la temperatura de la solució de passivació del cromat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-are-there-several-colors-of-passivation-fi-17117038485971968.html Per què hi ha diversos colors de pel·lícules de passivació i, en general, de quin color és la pel·lícula de passivació de les canonades d'acer galvanitzat? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-are-the-properties-of-the-passivation-fil-17117038478992384.html Quines són les propietats de la pel·lícula de passivació? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-are-the-components-of-the-passivation-fil-17117038565663744.html Quins són els components de la pel·lícula de passivació que proporcionen protecció contra la corrosió i quin és el principi que hi ha darrere? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-are-acids-added-to-some-chromate-and-chrom-17117038489232384.html Per què s'afegeixen àcids a algunes solucions de passivació de cromat i àcid cròmic? Quins són els avantatges i els inconvenients? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/treatment-of-waste-alkali-liquor-and-flux-wast-17117038507533312.html Tractament de residus de licors àlcalis i licors de residus de flux http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/treatment-of-waste-acid-bath-17117038523229184.html Tractament de Residus de Bany àcid http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/treatment-of-three-wastes-in-hot-dip-galvanizi-17117038495966208.html Tractament de tres residus en procés de galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-do-some-bright-galvanized-surfaces-develop-17117038625743872.html Per què algunes superfícies galvanitzades brillants desenvolupen punts negres després de la passivació? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/why-is-it-necessary-to-control-the-concentrati-17117038546805760.html Per què cal controlar la concentració de la solució de passivació? http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/what-is-a-steel-plastic-composite-pipe-17117038531224576.html Què és un tub compost d'acer-plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/treatment-of-zinc-ash-17117038543643648.html Tractament de cendres de zinc http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/treatment-of-zinc-slag-17117038514398208.html Tractament d'escòries de zinc http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/treatment-of-exhaust-gas-17117064039556096.html Tractament de gasos d'escapament http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/treatment-of-waste-passivation-solution-and-wa-17117038515086336.html Tractament de residus de la solució de passivació i residus de la solució de fosfatació http://ca.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://ca.zhengdapipe.com/info/how-are-lined-with-plastic-composite-pipes-pro-17117038516036608.html Com es produeixen els revestiments amb tubs compostos de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/why-is-it-called-lined-with-plastic-composite-17117038516413440.html Per què es diu folrat amb tub compost de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-application-areas-of-steel-plasti-17117038529291264.html Quines són les àrees d'aplicació de les canonades compostes d'acer-plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-production-processes-for-steel-pl-17117038951310336.html Què són els processos de producció per a tubs d'acer-plàstic compostos? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-characteristics-of-steel-plastic-17117038964646912.html Què són les característiques de les canonades d'acer-plàstic compost ? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-production-equipment-for-lined-co-17117038536139776.html Quins són els equips de producció per a canonades compostes revestides? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-forms-of-pre-treatment-17117038587307008.html Quines són les formes de pretractament? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/why-is-pre-treatment-necessary-for-lined-compo-17117038537597952.html Per què és necessari un pretractament per a canonades d'acer compost revestides? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-production-materials-for-lined-co-17117038525293568.html Quins són els materials de producció per a canonades compostes revestides? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-characteristics-of-lined-composit-17117038519837696.html Quines són les característiques de les canonades compostes revestides? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/why-is-material-mixing-necessary-17117038530962432.html Per què és necessària la barreja de materials? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/is-there-a-relationship-between-flow-rate-and-17117038567613440.html Hi ha una relació entre el cabal i la velocitat del cargol? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/which-part-experiences-the-highest-pressure-du-17117038562403328.html Quina part experimenta la pressió més alta durant el procés d'extrusió? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-changes-occur-to-plastic-particles-during-17117038539596800.html Quins canvis es produeixen a les partícules de plàstic durant el procés d'extrusió? https://img01.v15cdn.com/gallery/4x3/97.webp http://ca.zhengdapipe.com/info/why-is-an-extruder-needed-17117038529897472.html Per què es necessita una extrusora? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/why-aren-t-plastic-pipes-of-standard-length-17117038535812096.html Per què les canonades de plàstic no són de longitud estàndard? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/why-is-the-outer-surface-of-the-produced-plast-17117038539629568.html Per què la superfície exterior de la canonada de plàstic produïda és rugosa? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/how-to-control-the-wall-thickness-of-plastic-p-17117038626513920.html Com controlar el gruix de la paret de les canonades de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/why-is-moisture-measurement-necessary-for-plas-17117038532027392.html Per què és necessària la mesura de la humitat per a les matèries primeres de grànuls de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/is-the-mass-ratio-of-plastic-to-rubber-particl-17117038540973056.html La relació de massa de les partícules de plàstic i de cautxú és fixa? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/why-is-grooving-necessary-for-plastic-lined-co-17117038549591040.html Per què és necessari el ranurat per a canonades compostes revestides de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-is-grooving-17117038544954368.html Què és Grooving? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-is-ultra-audio-frequency-medium-frequency-17117038546019328.html Què és la calefacció d'ultra-àudio/freqüència mitjana? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/how-to-control-the-quality-of-composites-17117038546314240.html Com controlar la qualitat dels compostos? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-is-the-principle-of-composite-equipment-17117038548788224.html Quin és el principi de l'equip compost? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/are-there-any-requirements-for-the-pipe-caps-o-17126978044797952.html Hi ha algun requisit per als taps de canonades de canonades compostes revestides? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-colors-are-pipe-caps-generally-available-17126978030920704.html En quins colors estan disponibles generalment els taps de canonades? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/why-should-lined-composite-pipes-be-equipped-w-17126978049287168.html Per què les canonades compostes amb folre s'han d'equipar amb taps de canonades? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/why-use-a-swelling-ring-for-lined-composite-pi-17126977987093504.html Per què utilitzar un anell d'inflació per a canonades compostes folrats? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-is-a-swelling-ring-17126977963779072.html Què és un anell d'inflor? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/transportation-requirements-for-plastic-lined-17126978104206336.html Requisits de transport per a canonades compostes revestides de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/storage-requirements-for-plastic-lined-composi-17126978076320768.html Requisits d'emmagatzematge per a canonades compostes revestides de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-tests-need-to-be-conducted-on-plastic-lin-17126978039735296.html Quines proves s'han de dur a terme en canonades compostes revestides de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/are-there-any-precautions-for-using-plastic-li-17126978049188864.html Hi ha alguna precaució per utilitzar canonades compostes revestides de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/are-there-any-differences-in-the-packaging-met-17126978042799104.html Hi ha diferències en els mètodes d'embalatge per a canonades compostes revestides de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-production-equipment-for-plastic-17126978227905536.html Quins són els equips de producció de canonades compostes recobertes de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-characteristics-of-plastic-coated-17126978150065152.html Quines són les característiques de les canonades compostes recobertes de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-production-materials-for-plastic-17126978110202880.html Quins són els materials de producció per a canonades compostes recobertes de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/production-process-of-plastic-coated-composite-17126978231772160.html Procés de producció de tubs composts recoberts de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/why-is-it-called-plastic-coated-composite-pipe-17126978105025536.html Per què s'anomena tub compost recobert de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/how-is-a-3pe-composite-steel-pipe-produced-17126978150769664.html Com es produeix una canonada d'acer compost 3PE? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-is-a-3pe-composite-steel-pipe-17126978146755584.html Què és un tub d'acer compost 3PE? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/how-to-control-the-quality-of-plastic-coated-c-17126978161435648.html Com controlar la qualitat de les canonades compostes recobertes de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-inspection-methods-for-plastic-co-17126978136007680.html Quins són els mètodes d'inspecció per a canonades compostes recobertes de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-manufacturing-processes-for-plast-17126978127422464.html Quins són els processos de fabricació de canonades compostes recobertes de plàstic? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-inspection-standards-for-3pe-comp-17126978192073728.html Quins són els estàndards d'inspecció per a canonades compostes 3PE? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-specific-manufacturing-processes-17126978234213376.html Quins són els processos de fabricació específics per a canonades compostes 3PE? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-production-equipment-for-3pe-comp-17126978148279296.html Quins són els equips de producció per a canonades compostes 3PE? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-raw-materials-used-in-the-product-17126978134631424.html Quines són les matèries primeres utilitzades en la producció de canonades compostes 3PE? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-are-the-characteristics-of-3pe-composite-17126978129339392.html Quines són les característiques de les canonades compostes 3PE? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/what-equipment-is-required-for-longitudinal-sh-17137396792140800.html Quin equip es necessita per al tall longitudinal? http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/what-are-the-raw-materials-for-longitudinal-sh-17137396777690112.html Quines són les matèries primeres per a la cisalla longitudinal? http://ca.zhengdapipe.com/uploads/33181/info/n20241130090649b3311.jpg http://ca.zhengdapipe.com/info/why-is-longitudinal-shearing-necessary-17137396772086784.html Per què és necessari el tall longitudinal? http://ca.zhengdapipe.com/uploads/33181/info/n20241130090404027e2.jpg http://ca.zhengdapipe.com/info/what-is-longitudinal-shearing-17137396783866880.html Què és el tall longitudinal? http://ca.zhengdapipe.com/uploads/33181/info/n2024113009012991e69.jpg http://ca.zhengdapipe.com/info/how-to-conduct-quality-control-for-3pe-composi-17137396893492224.html Com dur a terme el control de qualitat per a canonades compostes 3PE? http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/characteristics-of-high-frequency-welding-17137396812194816.html Característiques de la soldadura d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/principle-of-high-frequency-welding-17137396784210944.html Principi de soldadura d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/high-frequency-welded-steel-pipe-17137396785128448.html Què és la canonada d'acer soldada d'alta freqüència? http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/how-to-control-the-accuracy-of-slitting-17137396827497472.html Com controlar la precisió del tall? http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/processing-flow-of-slitting-17137396945839104.html Flux de processament de tall http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/quality-control-measures-for-high-frequency-we-17137396798628864.html Mesures de control de qualitat per a canonades d'acer soldades d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/welding-methods-17137396813652992.html Mètodes de soldadura http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/production-process-high-frequency-welded-17137396902142976.html Procés de producció de canonades d'acer soldades d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/equipment-required-for-high-frequency-welded-s-17137396892312576.html Equips necessaris per a la producció de canonades d'acer soldades d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-main-production-raw-materials-for-high-fre-17137396786357248.html Les principals matèries primeres de producció per a canonades rodones soldades d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/common-issues-and-solutions-in-the-production-17137396916364288.html Problemes comuns i solucions en la producció de tubs rodons soldats d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/high-frequency-welding-17137396813685760.html Soldadura d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/high-frequency-welded-round-tube-17137396801102848.html Tub rodó soldat d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/tests-required-for-high-frequency-welded-17137396847420416.html Proves necessàries per a tubs d'acer soldats d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/methods-to-ensure-the-quality-of-high-frequenc-17137396904633344.html Mètodes per garantir la qualitat dels tubs d'acer soldats d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/raw-materials-required-for-spiral-welded-pipe-17137396819256320.html Matèries primeres necessàries per a la canonada soldada en espiral http://ca.zhengdapipe.com/uploads/33181/info/n2024120511473098225.jpg http://ca.zhengdapipe.com/info/spiral-welded-pipe-17137396820419584.html Tub soldat en espiral http://ca.zhengdapipe.com/uploads/33181/info/n202412051144345dac1.jpg http://ca.zhengdapipe.com/info/common-issues-in-the-production-of-high-freque-17137396960781312.html Problemes comuns en la producció de tubs quadrats soldats d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202412051134374ea8a.jpg http://ca.zhengdapipe.com/info/differences-between-high-frequency-welded-squ-17137396819764224.html Diferències entre tubs quadrats soldats d'alta freqüència i tubs rodons http://ca.zhengdapipe.com/uploads/33181/info/n20241205112841c756a.jpg http://ca.zhengdapipe.com/info/high-frequency-welded-square-tube-17137396818027520.html Tub quadrat soldat d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202412051125174aec6.jpg http://ca.zhengdapipe.com/info/function-of-leveling-17137396825859072.html Funció d'anivellament http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/function-of-uncoiling-in-feeding-17137396822385664.html Funció de desenrotllament en l'alimentació http://ca.zhengdapipe.com/uploads/33181/info/n202412060908409a4a3.jpg http://ca.zhengdapipe.com/info/processes-in-the-production-of-spiral-welded-p-17137396885545984.html Processos en la Producció de Tubs Soldats Espirals http://ca.zhengdapipe.com/uploads/33181/info/n20241206090554fcd10.jpg http://ca.zhengdapipe.com/info/characteristics-of-spiral-welded-pipe-producti-17137396850238464.html Característiques de la producció de canonades soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20241206090247bade8.jpg http://ca.zhengdapipe.com/info/equipment-required-for-spiral-welded-pipe-prod-17137396836213760.html Equip necessari per a la producció de canonades soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20241206085922a1048.jpg http://ca.zhengdapipe.com/info/forming-angle-17137731325043712.html Angle de formació http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/function-of-forming-17137731315491840.html Funció de Formació http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/function-of-feeding-17137731307004928.html Funció d'alimentació http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/function-of-edge-trimming-17137731302253568.html Funció de retall de vores http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/function-of-shear-butt-welding-17137731313460224.html Funció de la soldadura a tope de cisalla http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/function-of-slag-removal-17137731350340608.html Funció d'eliminació d'escòries http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/role-of-initial-inspection-of-pipe-cutting-17137731330057216.html Paper de la inspecció inicial del tall de canonades http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/parameters-to-be-adjusted-for-internal-and-ext-17137731336987648.html Paràmetres a ajustar per a la soldadura interna i externa http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/function-of-external-welding-17137731349652480.html Funció de la soldadura externa http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/function-of-internal-welding-17137731314983936.html Funció de la soldadura interna https://img01.v15cdn.com/gallery/4x3/26.webp http://ca.zhengdapipe.com/info/causes-and-solutions-of-slag-inclusion-defects-17137731354878976.html Causes i solucions dels defectes d'inclusió d'escòries en canonades soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/causes-and-solutions-of-porosity-defects-in-sp-17137731360793600.html Causes i solucions dels defectes de porositat en canonades soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/precautions-for-chamfering-17137731362612224.html Precaucions per a xamfranar http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/function-of-chamfering-17137731334611968.html Funció de xamfranat http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/function-of-repair-welding-17137731327697920.html Funció de la soldadura de reparació http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/solutions-for-crack-defects-17149569675715584.html Solucions per a defectes d'esquerdes http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/crack-defec-17149608794285056.html Defecte d'esquerda http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/solutions-for-incomplete-penetration-and-lack-17149451859518464.html Solucions per a la penetració incompleta i la manca de defectes de fusió https://img01.v15cdn.com/gallery/4x3/102.webp http://ca.zhengdapipe.com/info/incomplete-penetration-and-lack-of-fusion-def-17149530139501568.html Penetració incompleta i manca de defectes de fusió http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/causes-and-solutions-for-undercut-defects-17149392084493312.html Causes i solucions per als defectes socavats http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/other-quality-control-measures-for-spiral-weld-17149451854111744.html Altres mesures de control de qualitat per a canonades soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/inspection-and-quality-control-of-finished-spi-17149413037876224.html Inspecció i control de qualitat de canonades espirals soldades acabades http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/quality-control-of-welded-seams-in-spiral-weld-17149491227288576.html Control de qualitat de les costures soldades en tubs soldats en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/production-process-control-of-spiral-welded-pi-17149392091194368.html Control del procés de producció de canonades soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/selection-and-control-of-raw-materials-for-spi-17149569693443072.html Selecció i control de matèries primeres per a canonades soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/introduction-to-hot-dip-galvanizing-17149805149611008.html Introducció a la galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/demagnetization-of-spirally-welded-steel-pipes-17149392144671744.html Desmagnetització de canonades d'acer soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/ultrasonic-inspection-for-spirally-welded-stee-17149412994737152.html Inspecció per ultrasons per a canonades d'acer soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/x-ray-inspection-for-spirally-welded-steel-pip-17149413043774464.html Inspecció de raigs X per a canonades d'acer soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/hydrostatic-pressure-test-for-spirally-welded-17149451861435392.html Prova de pressió hidrostàtica per a canonades d'acer soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n20241206091101eadc6.jpg http://ca.zhengdapipe.com/info/methods-commonly-used-for-hot-dip-galvanizing-17149392108053504.html Mètodes utilitzats habitualment per a canonades d'acer de galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/advantages-of-hot-dip-galvanizing-17149452006728704.html Avantatges de la galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-value-of-hot-dip-galvanized-steel-pipes-17149413009531904.html El valor de les canonades d'acer galvanitzat en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/reasons-for-hot-dip-galvanizing-steel-products-17149392099271680.html Motius per als productes d'acer galvanitzat en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/principle-of-hot-dip-galvanizing-17149491173434368.html Principi de galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/introduction-to-potassium-dichromate-and-sodiu-17149392110920704.html Introducció al dicromat de potassi i al dicromat de sodi http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/introduction-to-chromic-anhydride-and-chromic-17149451865760768.html Introducció a l'anhídrid cròmic i l'àcid cròmic http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/introduction-to-ammonium-chloride-17149451925480448.html Introducció al clorur d'amoni http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/introduction-to-zinc-chloride-17149608841274368.html Introducció al clorur de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/application-scope-of-hot-dip-galvanizing-17149765563458560.html Àmbit d'aplicació de la galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/introduction-to-chemical-corrosion-17149530132308992.html Introducció a la corrosió química http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/introduction-to-metal-corrosion-17149392117064704.html Introducció a la corrosió metàl·lica http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/possible-corrosion-phenomena-in-hot-dip-galvan-17149491216933888.html Possibles fenòmens de corrosió en galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-role-of-zinc-nickel-alloy-in-hot-dip-galv-17149392196592640.html El paper de l'aliatge de zinc-níquel en la galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/introduction-to-zinc-aluminum-alloy-ingots-17149491192833024.html Introducció als lingots d'aliatge de zinc-alumini http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-zinc-coatings-indoors-17173420728050688.html Corrosió de recobriments de zinc en interiors http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-zinc-coatings-in-outdoor-environm-17173420754625536.html Corrosió de recobriments de zinc en ambients exteriors http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-behavior-of-zinc-coatings-in-non-aci-17173420630942720.html Comportament a la corrosió dels recobriments de zinc en atmosferes no àcides/alcalines i àcides/alcalines http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/methods-for-preventing-and-removing-white-rust-17173420676391936.html Mètodes per prevenir i eliminar l'òxid blanc en recobriments galvanitzats http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/introduction-to-electrochemical-corrosion-17173420620784640.html Introducció a la corrosió electroquímica http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-zinc-layer-in-seawater-17173420664136704.html Corrosió de la capa de zinc a l'aigua de mar http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-zinc-coatings-in-distilled-water-17173420670133248.html Corrosió de recobriments de zinc en aigua destil·lada http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-zinc-coatings-in-hot-water-17173420658533376.html Corrosió de recobriments de zinc en aigua calenta http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-zinc-coatings-in-cold-tap-water-17173420649702400.html Corrosió de recobriments de zinc en aigua freda de l'aixeta http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-the-accelerated-corrosion-of-zi-17173420650669056.html El motiu de la corrosió accelerada dels recobriments de zinc en atmosferes industrials que contenen sofre http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/main-factors-determining-the-corrosion-rate-of-17173420668462080.html Principals factors que determinen la taxa de corrosió dels recobriments de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-the-initially-faster-corrosion-17173420662432768.html El motiu de la taxa de corrosió inicialment més ràpida dels recobriments de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-zinc-coatings-in-oil-fields-17173420656256000.html Corrosió de recobriments de zinc en jaciments petroliers http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-zinc-coatings-on-buildings-17173420655043584.html Corrosió de recobriments de zinc en edificis http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-zinc-coatings-in-soil-17173420802778112.html Corrosió de recobriments de zinc al sòl http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/advantages-and-disadvantages-of-pickling-steel-17173420714058752.html Avantatges i desavantatges de les canonades d'acer decapat en àcid clorhídric http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/optimal-temperature-and-concentration-for-pick-17173420679767040.html Temperatura i concentració òptimes per al decapat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/reasons-for-pickling-steel-tube-billets-17173420701885440.html Motius per al decapat de billets de tubs d'acer http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/factors-influencing-the-lifespan-of-hot-dip-ga-17173420731917312.html Factors que influeixen en la vida útil dels recobriments de zinc galvanitzats en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/principles-of-corrosion-protection-by-zinc-coa-17173420698067968.html Principis de protecció contra la corrosió mitjançant recobriments de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/acid-embrittlement-or-hydrogen-embrittlement-17181001547867136.html Fragilització àcida (o fragilitat per hidrogen) http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/quality-defects-easily-occurring-during-pickli-17181002094601216.html Defectes de qualitat que es produeixen fàcilment durant el decapat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-soaking-steel-pipes-in-hot-wate-17181001561695232.html La raó per remullar canonades d'acer en aigua calenta abans del decapat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/internal-and-external-factors-influencing-the-17181001556255744.html Factors interns i externs que influeixen en el decapat de canonades d'acer http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-impact-of-iron-iii-chloride-and-iron-ii-17181001549980672.html L'impacte del contingut de clorur de ferro (III) (i clorur de ferro (II)) en la solució de decapat d'àcid clorhídric en el procés de decapat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/reasons-for-achieving-better-results-when-osci-17181001576539136.html Raons per aconseguir millors resultats en oscil·lar tubs d'acer o en remenar la solució durant el decapat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/pickling-steel-tubes-using-multi-tank-and-sing-17181001570804736.html Decapat de tubs d'acer mitjançant mètodes de tancs múltiples i d'un sol dipòsit http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-pros-and-cons-of-direct-steam-heating-for-17181001571640320.html Els avantatges i els contres de l'escalfament directe de vapor per a solucions de decapat https://img01.v15cdn.com/gallery/4x3/163.webp http://ca.zhengdapipe.com/info/heating-methods-for-pickling-solutions-17181001660228608.html Mètodes d'escalfament per a solucions de decapat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-the-presence-of-a-noticeable-cl-17181001566331904.html El motiu de la presència d'un cúmul notable de fosses de corrosió a la superfície de canonades d'acer soldades després del decapat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/purpose-of-using-flux-17181001646253056.html Propòsit de l'ús de Flux http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/purpose-of-rinsing-17181001605850112.html Propòsit de l'esbandida http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/what-aspects-should-be-self-checked-during-th-17181001565234176.html Quins aspectes s'han d'autocontrolar durant el procés de decapat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reasons-why-steel-pipes-must-be-rinsed-imm-17181001585468416.html Les raons per les quals s'han d'esbandir les canonades d'acer immediatament després del decapat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-lifting-and-lowering-bundled-st-17181001555420160.html El motiu per aixecar i baixar tubs d'acer agrupats diverses vegades durant el decapatge http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/what-are-the-impacts-of-excessive-drying-time-17186963610166272.html Quins són els impactes d'un temps d'assecat excessiu per a canonades d'acer? http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/issues-arising-from-inadequately-dried-steel-p-17186963610903552.html Problemes derivats de canonades d'acer assecades inadequadament http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/determination-of-drying-temperature-17186963591078912.html Determinació de la temperatura d'assecat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/main-components-of-dry-process-solvents-17186963627254784.html Components principals dels dissolvents de procés sec http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/main-components-of-wet-process-flux-17186963583280128.html Components principals del flux de procés humit http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-influence-of-lead-pb-in-molten-zinc-on-h-17186963619210240.html La influència del plom (Pb) en el zinc fos en la galvanització per immersió en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/sources-of-alloy-components-in-the-galvanizing-17186963613295616.html Fonts de components d'aliatge a l'olla de galvanització http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/factors-influencing-the-normal-microstructure-17186963607184384.html Factors que influeixen en la microestructura normal dels recobriments galvanitzats http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/how-is-zinc-securely-plated-onto-stee-17186963602940928.html Com es xapa de manera segura el zinc sobre l'acer? http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/operating-methods-for-drying-17186963601368064.html Mètodes operatius per a l'assecat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-impact-of-nickel-content-in-steel-tubes-an-17186963636036608.html L'impacte del contingut de níquel en tubs d'acer i substrats d'olla de galvanització en la galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-impact-of-magnesium-in-molten-zinc-on-hot-17186963663594496.html L'impacte del magnesi en el zinc fos en la galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/how-do-aluminum-containing-and-aluminum-free-17186963646768128.html Com es diferencien les foses de zinc que contenen alumini i sense alumini en els seus efectes de corrosió sobre el ferro http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-impact-of-aluminum-in-molten-zinc-on-hot-d-17186963687072768.html L'impacte de l'alumini en zinc fos en la galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-impact-of-iron-in-molten-zinc-on-hot-dip-g-17186963651617792.html L'impacte del ferro al zinc fos en la galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-impact-of-the-quality-of-zinc-aluminum-all-17192110782604288.html L'impacte de la qualitat de l'aliatge de zinc-alumini en els recobriments galvanitzats http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/advantages-and-disadvantages-of-adding-lead-to-17192110842848256.html Avantatges i desavantatges d'afegir plom al bany de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-inclining-steel-tubes-at-an-ang-17192110746477568.html La raó de la inclinació dels tubs d'acer en angle quan els submergeix al bany de zinc per galvanitzar-los http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/formation-conditions-composition-and-propert-17192110816224256.html Condicions de formació, composició i propietats de l'escòria de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/formation-and-composition-of-zinc-ash-17192110755980288.html Formació i composició de cendres de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/reasons-for-frequent-occurrences-of-missing-ga-17192110768563200.html Motius per als freqüents casos de falta de galvanització a l'interior i als extrems de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/reasons-why-aluminum-cannot-be-added-to-the-zi-17192110797857792.html Raons per les quals no es pot afegir l'alumini al bany de zinc en galvanització en calent humit http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/reasons-for-uncoated-spots-during-hot-dip-galv-17192110851613696.html Motius de les taques no recobertes durant la galvanització per immersió en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/methods-to-reduce-the-production-of-zinc-ash-17192110775362560.html Mètodes per reduir la producció de cendres de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/factors-influencing-the-growth-rate-of-zinc-as-17192110788518912.html Factors que influeixen en la taxa de creixement de la cendra de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/methods-to-reduce-the-production-of-zinc-as-17192110803444736.html Mètodes per reduir la producció de cendres de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-why-galvanized-steel-tubes-generall-17192110814127104.html La raó per la qual els tubs d'acer galvanitzat generalment no tenen lluentons mentre que la xapa galvanitzada sovint en té http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-adding-zinc-ingots-directly-int-17192110779130880.html La raó per afegir lingots de zinc directament a l'olla de galvanització des dels dos extrems http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-the-difference-in-spangle-size-17192110770480128.html La raó de la diferència en la mida de la lluneja entre els tubs de paret prima i de paret gruixuda sota el mateix procés i condicions de funcionament http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/reasons-why-the-product-quality-of-dry-hot-dip-17192110762501120.html Raons per les quals la qualitat del producte del zinc galvanitzat en calent sec és millor que el zinc galvanitzat en calent humit http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/formation-and-composition-of-zinc-dross-17196485275689984.html Formació i composició d'escories de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/what-is-zinc-dros-17196172920857600.html Què és l'escoria de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-detrimental-effects-of-zinc-ash-on-hot-dip-17196406274106368.html Els efectes perjudicials de la cendra de zinc en la galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/pros-and-cons-of-frequently-scraping-zinc-oxid-17196249588016128.html Pros i contres del raspat freqüent de l'òxid de zinc (cendra de zinc) http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-why-there-is-more-zinc-oxide-zinc-17196249581822976.html La raó per la qual hi ha més òxid de zinc (cendra de zinc) a la superfície del bany de zinc a l'extrem de la cua de les canonades d'acer durant la galvanització en calent que en qualsevol altre lloc. http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reasons-for-preferably-using-superheated-s-17196328989910016.html Els motius per utilitzar preferentment vapor sobreescalfat per al bufat intern i netejar el zinc: http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-blowing-and-wiping-the-inner-an-17196210486617088.html La raó per bufar i netejar les superfícies interiors i exteriors de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/impact-of-pretreatment-on-the-adhesion-of-galv-17196172949939200.html Impacte del pretractament en l'adhesió de recobriments galvanitzats http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/impact-of-molten-zinc-temperature-on-zinc-dros-17196328991564800.html Impacte de la temperatura del zinc fos sobre les escories de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/impact-of-zinc-dross-on-the-galvanized-layer-o-17196210475901952.html Impacte de les escories de zinc sobre la capa galvanitzada de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-water-cooling-galvanized-steel-17196210469381120.html El motiu de la refrigeració per aigua de les canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-using-lightweight-aluminum-allo-17196172961735680.html El motiu de l'ús de rotlles de rodet d'aliatge d'alumini lleuger per transportar tubs d'acer galvanitzat al llit de refrigeració després d'un tractament extern de bufat i neteja de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/what-parameters-determine-the-air-cooling-time-17196445831029760.html Quins paràmetres determinen el temps de refrigeració per aire per a canonades d'acer galvanitzat? http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-air-cooling-after-internal-and-17196291099812864.html El motiu de la refrigeració per aire després del bufat intern i extern i el tractament de neteja de canonades d'acer galvanitzat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-initially-increasing-the-gas-fl-17196172946072576.html El motiu per augmentar inicialment el cabal de gas durant el bufat extern i l'eixugament de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/reasons-why-some-galvanized-steel-pipes-bend-m-17225362735850496.html Raons per les quals algunes canonades d’acer galvanitzades es dobleguen més severament després del refredament de l’aigua http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/measures-to-prevent-galvanized-steel-pipes-fro-17225362795619328.html Mesures per evitar que les canonades d’acer galvanitzades es dobleguin a causa del refredament d’aigua http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/reasons-for-strictly-controlling-the-cooling-w-17225362735719424.html Motius per controlar estrictament la temperatura de l’aigua de refrigeració per a les canonades d’acer galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/water-quality-requirements-for-cooling-galvani-17225362747581440.html Requisits de qualitat de l’aigua per a les canonades d’acer galvanitzades de refrigeració http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/cooling-methods-for-galvanized-steel-pipes-17225362795930624.html Mètodes de refrigeració per a canonades d’acer galvanitzades http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/methods-of-surface-passivation-treatment-17225362744206336.html Mètodes de tractament de passivació superficial http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reasons-for-conducting-surface-passivation-17225362745058304.html Els motius per realitzar un tractament de passivació superficial en recobriments galvanitzats http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/definition-of-passivation-phenomenon-17225362743649280.html Definició de fenomen de passivació http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-trying-to-drain-off-the-water-d-17225362739586048.html El motiu per intentar drenar les gotes d'aigua dins i fora de la canonada d'acer galvanitzada després de refredar -se http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-reason-for-the-visible-turtle-cracking-pat-17225362739028992.html El motiu del patró de cracking de tortugues visible a la superfície de les canonades d’acer galvanitzades després del refredament d’aigua http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/what-is-the-color-of-the-passivation-film-on-g-17225362764047360.html Quin és el color de la pel·lícula de passivació a les canonades d’acer galvanitzades? http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/properties-of-passivation-film-17225397673714688.html Propietats de la pel·lícula de passivació http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/composition-and-principle-of-corrosion-protect-17225362759787520.html Composició i principi de protecció de la corrosió per pel·lícula de passivació http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-pros-and-cons-of-adding-acids-to-chromate-17225362776450048.html Els avantatges i els contres d’afegir àcids a les solucions de passivació de cromat i àcid cromic http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/formula-for-chromate-purification-solutio-17225362767799296.html Fórmula per a la solució de purificació de cromats http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/treatment-of-waste-alkali-liquor-and-flux-was-17227352589952000.html Tractament del licor de licors i licors de residus de residus en el procés de galvanització de dipòsits calents http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/treatment-of-waste-acid-baths-in-the-hot-dip-g-17227315468231680.html Tractament dels banys d’àcids residuals en el procés de galvanització de xifres calentes http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/causes-of-black-spots-on-bright-galvanized-coa-17227315458155520.html Causes de taques negres en recobriments galvanitzats brillants després de la passivació http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/reasons-for-controlling-the-concentration-of-p-17227315427435520.html Raons per controlar la concentració de solució de passivació http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/reasons-for-strictly-controlling-the-temperatu-17227315483812864.html Motius per controlar estrictament la temperatura de la solució de passivació del cromat http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/steel-plastic-composite-pipe-17237227871806464.html Pipa composta d'acer-plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/treatment-of-zinc-as-17237227876066304.html Tractament del zinc com http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/treatment-of-zinc-sla-17237227890648064.html Tractament de l'escòria de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/treatment-of-exhaust-ga-17237227880113152.html Tractament del gas d’escapament http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/treatment-of-waste-passivation-solution-and-w-17237227876115456.html Tractament de solucions de passivació de residus i solució de fosfat de residus http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/production-method-of-plastic-lined-composite-p-17237227910882304.html Mètode de producció de canonades compostes folrades de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/plastic-lined-composite-pipe-17237227908834304.html Canonada composta de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/application-areas-of-steel-plastic-composite-p-17237227902428160.html Àrees d'aplicació de canonades compostes de plàstic d'acer http://ca.zhengdapipe.com/uploads/33181/info/n20250214092258dcf2c.jpg http://ca.zhengdapipe.com/info/production-process-of-steel-plastic-composite-17237227901969408.html Procés de producció de canonades compostes de plàstic d’acer http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/characteristics-of-steel-plastic-composite-pip-17237227914683392.html Característiques de la canonada composta de plàstic d’acer http://ca.zhengdapipe.com/uploads/33181/info/n20250214092258dcf2c.jpg http://ca.zhengdapipe.com/info/production-equipment-for-lined-composite-pipes-17237297235633152.html Equips de producció per a canonades compostes folrades http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/forms-of-pretreatment-17237264664372224.html Formes de pretractament http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/pretreatment-of-lined-composite-steel-pipes-17237227902772224.html Pretractament de canonades d'acer compostes folrades http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/production-materials-for-lined-composite-pipes-17237227947320320.html Materials de producció per a canonades compostes folrades http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/characteristics-of-lined-composite-pipes-17237227942716416.html Característiques de les canonades compostes folrades http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/reasons-for-mixing-materials-17237227920778240.html Motius per barrejar materials http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/relationship-between-flow-rate-and-screw-speed-17237227932820480.html Relació entre el cabal i la velocitat del cargol http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/the-area-subject-to-the-highest-pressure-durin-17237227919696896.html La zona sotmesa a la pressió més alta durant el procés d’extrusió http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/changes-in-plastic-granules-during-the-extrusi-17237227921531904.html Canvis en els grànuls de plàstic durant el procés d'extrusió http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/extruder-17237227915600896.html Extrús http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/reasons-why-plastic-pipes-are-not-of-standard-17237227928413184.html Raons per les quals les canonades de plàstic no són de longitud estàndard http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/reasons-for-the-rough-exterior-of-produced-pla-17237227964425216.html Raons per a l'exterior rugós de les canonades de plàstic produïdes http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/control-methods-for-wall-thickness-of-plastic-17237227922957312.html Mètodes de control per al gruix de la paret de les canonades de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/the-reason-for-measuring-moisture-content-in-p-17237227922351104.html El motiu de mesurar el contingut d’humitat en matèries primeres de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/mass-ratio-of-plastic-to-rubber-granules-17237227921155072.html Relació massiva de plàstic a grànuls de goma http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/reasons-for-grooving-plastic-lined-composite-p-17242745209037824.html Motius per a les canonades compostes folrades de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/grooving-17242745222161408.html Ranurant http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/ultra-audio-frequency-medium-frequency-heating-17242745221227520.html Calefacció de freqüència ultra-audio/freqüència mitjana http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/methods-for-controlling-composite-quality-17242745221112832.html Mètodes per controlar la qualitat composta http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/principle-of-composite-equipment-17242745208579072.html Principi dels equips compostos http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/requirements-for-caps-of-plastic-lined-composi-17242745224029184.html Requisits per a taps de canonades compostes folrades de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/color-of-pipe-caps-17242745209955328.html Color de gorres de canonades http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/the-reason-for-using-caps-on-plastic-lined-com-17242745209463808.html El motiu per utilitzar taps en canonades compostes folrades de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/the-reason-for-using-an-expanding-ring-on-plas-17242745207333888.html El motiu per utilitzar un anell en expansió en canonades compostes folrades de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/expanding-ring-17242745246278656.html Anell en expansió http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/transportation-requirements-for-plastic-line-17249036036826112.html Requisits de transport per a canonades compostes folrades de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/storage-requirements-for-plastic-lined-compos-17249036020786176.html Requisits d’emmagatzematge per a canonades compostes folrades de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/tests-required-for-plastic-lined-composite-pip-17249036113896448.html Proves necessàries per a canonades compostes folrades de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/precautions-for-using-plastic-lined-composite-17249036014576640.html Precaucions per utilitzar canonades compostes folrades de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/packing-method-for-plastic-lined-composite-pip-17249036028748800.html Mètode d'embalatge per a canonades compostes folrades de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://ca.zhengdapipe.com/info/production-equipment-for-plastic-coated-compos-17249036050342912.html Equips de producció per a canonades compostes recobertes de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n20250224101313cc2b8.jpg http://ca.zhengdapipe.com/info/characteristics-of-plastic-coated-composite-pi-17249036100084736.html Característiques de les canonades compostes recobertes de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n202502241010171ff34.jpg http://ca.zhengdapipe.com/info/production-materials-for-plastic-coated-compos-17249036052587520.html Materials de producció per a canonades compostes recobertes de plàstic http://ca.zhengdapipe.com/uploads/33181/info/n20250224100525caff2.jpg http://ca.zhengdapipe.com/info/production-process-of-plastic-coated-composit-17249036083749888.html Procés de producció de canonades compostes recobertes de plàstic 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Matèries primeres per a tubs d’acer soldadors d’alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202502280854195fbac.jpg http://ca.zhengdapipe.com/info/characteristics-of-high-frequency-weldin-17255791696978944.html Característiques de la soldadura d’alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202502280854195fbac.jpg http://ca.zhengdapipe.com/info/principle-of-high-frequency-weldin-17255791693423616.html Principi de soldadura d’alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202502280854195fbac.jpg http://ca.zhengdapipe.com/info/high-frequency-welded-steel-pip-17255791677957120.html Canonada d'acer soldada d'alta freqüència http://ca.zhengdapipe.com/uploads/33181/info/n202502280854195fbac.jpg http://ca.zhengdapipe.com/info/methods-for-controlling-the-precision-of-slitt-17255791743902720.html Mètodes per controlar la precisió del tallat http://ca.zhengdapipe.com/uploads/33181/info/n202502280854195fbac.jpg 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http://ca.zhengdapipe.com/info/demagnetization-of-spiral-welded-pipe-17310029936501760.html Desmagnetització de canonades soldades en espiral http://ca.zhengdapipe.com/uploads/33181/info/n2025030608564589e6d.jpg http://ca.zhengdapipe.com/info/ultrasonic-inspection-17310029907141632.html Inspecció per ultrasons https://img01.v15cdn.com/gallery/4x3/292.webp http://ca.zhengdapipe.com/info/zinc-chloride-17310029931570176.html Clorur de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-application-scope-of-hot-dip-galvanizing-17310029922149376.html L’abast de l’aplicació de la galvanització de xifres calentes http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/hot-dip-galvanizing-method-17310029923869696.html Mètode de galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/advantages-of-hot-dip-galvanizin-17310030022173696.html Avantatges de la galvanització en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/the-value-of-hot-dip-galvanized-steel-pipe-17310029918856192.html El valor de les canonades d’acer galvanitzades en calent http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/zinc-nickel-alloy-17334132216734720.html Aliatge de níquel de zinc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/zinc-aluminum-alloy-ingots-17334132188029952.html Lingots d’aliatge de zinc-alumini http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/potassium-dichromate-and-sodium-dichromate-17334132180837376.html Dichromat de potassi i dicromat de sodi http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/chromic-anhydride-and-chromic-acid-17334132197286912.html Anhídrid cromàtic i àcid cromic http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/ammonium-chloride-17334132166272000.html Clorur d’amoni https://img01.v15cdn.com/gallery/4x3/111.webp http://ca.zhengdapipe.com/info/white-rust-on-galvanized-coatings-17366033824572416.html Rust blanc sobre recobriments galvanitzats http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/electrochemical-corrosion-17366033822917632.html Corrosió electroquímica http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/chemical-corrosion-17366033821443072.html Corrosió química http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-metals-17366033823736832.html Corrosió de metalls http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-phenomena-of-hot-dip-galvanizing-17366033799422976.html Fenòmens de corrosió de la galvanització de xifres calentes http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-zinc-coatings-in-indoor-environme-17366033881342976.html Corrosió dels recobriments de zinc en entorns interiors http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-zinc-coatings-in-outdoor-environ-17366033904133120.html Corrosió de recobriments de zinc en entorns exteriors http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-behavior-of-zinc-coatings-in-acidic-17366033876280320.html Comportament de corrosió dels recobriments de zinc en atmosferes àcides\/alcalines i neutres http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/methods-to-remove-white-rus-17366033892402176.html Mètodes per eliminar el rovell blanc https://img01.v15cdn.com/gallery/4x3/241.webp http://ca.zhengdapipe.com/info/methods-to-prevent-white-rust-formation-17366033841841152.html Mètodes per evitar la formació de rovell blanc http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-behavior-of-zinc-coatings-in-seawate-17366033873085440.html Comportament de corrosió dels recobriments de zinc a l’aigua de mar http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-behavior-of-zinc-coatings-in-distill-17366033870922752.html Comportament de corrosió dels recobriments de zinc en aigua destil·lada http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-behavior-of-zinc-coatings-in-hot-wat-17366033860813824.html Comportament de corrosió dels recobriments de zinc en aigua calenta http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-behavior-of-zinc-coatings-in-cold-ta-17366033884849152.html Comportament de la corrosió dels recobriments de zinc a l’aigua de l’aixeta freda http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/corrosion-of-zinc-coatings-in-sulfur-containin-17366033846756352.html Corrosió dels recobriments de zinc en atmosferes industrials que contenen sofre http://ca.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://ca.zhengdapipe.com/info/development-process-of-steel-pipe-forming-tech-17373936314131456.html Procés de desenvolupament de la tecnologia de formació de canonades d'acer https://img01.v15cdn.com/gallery/4x3/149.webp http://ca.zhengdapipe.com/info/development-history-of-china-s-steel-pipe-indu-17373936274220032.html Història del desenvolupament de la indústria de canonades d’acer de la Xina https://img01.v15cdn.com/gallery/4x3/268.webp http://ca.zhengdapipe.com/info/large-diameter-welded-pipe-production-units-17403907430720512.html Unitats de producció de canonades soldades de gran diàmetre https://img01.v15cdn.com/gallery/4x3/71.webp http://ca.zhengdapipe.com/info/medium-diameter-welded-pipe-production-units-17403907435848704.html Unitats de producció de canonades soldades de diàmetre mitjà (8-26 polzades) https://img01.v15cdn.com/gallery/4x3/19.webp http://ca.zhengdapipe.com/info/development-of-small-diameter-welded-pipe-prod-17403907382518784.html Desenvolupament d'unitats de producció de canonades soldades de petit diàmetre https://img01.v15cdn.com/gallery/4x3/253.webp http://ca.zhengdapipe.com/info/current-status-of-the-steel-pipe-industry-17403907376358400.html Estat actual de la indústria de les canonades d’acer https://img01.v15cdn.com/gallery/4x3/42.webp http://ca.zhengdapipe.com/info/the-development-history-of-china-s-steel-pipe-17522529823548416.html La història del desenvolupament de la indústria de les canonades d’acer de la Xina https://img01.v15cdn.com/gallery/4x3/177.webp http://ca.zhengdapipe.com/info/three-important-processes-of-steel-pipe-indust-17522529828054016.html Tres processos importants de la construcció de la indústria de les canonades d’acer (1) el període de fundació a la dècada de 1950 https://img01.v15cdn.com/gallery/4x3/208.webp http://ca.zhengdapipe.com/info/the-popularization-period-of-the-60-70s-of-the-17522529823990784.html （2） El període de popularització dels anys 60-70 del segle XX https://img01.v15cdn.com/gallery/4x3/104.webp http://ca.zhengdapipe.com/info/3-the-improvement-and-development-period-of-t-17522529897800704.html 3. El període de millora i desenvolupament de la indústria de les canonades d’acer https://img01.v15cdn.com/gallery/4x3/208.webp http://ca.zhengdapipe.com/info/3-establishment-of-factories-for-other-varie-17522529860592640.html (3) Establiment de fàbriques per a altres varietats de canonades d'acer https://img01.v15cdn.com/gallery/4x3/237.webp http://ca.zhengdapipe.com/info/second-the-development-process-of-steel-pip-17522529918624768.html 2, en segon lloc, el procés de desenvolupament de la tecnologia de formació de canonades d’acer. DESENVOLUPAMENT DE LA UNITAT DE PRODUCCIÓ DE PIBES DE DIAMTER {{2- https://img01.v15cdn.com/gallery/4x3/39.webp http://ca.zhengdapipe.com/info/2-medium-diameter-welded-pipe-production-unit-17522529923113984.html 2 Unitat de producció de canonades soldades de diàmetre mitjà https://img01.v15cdn.com/gallery/4x3/300.webp http://ca.zhengdapipe.com/info/3-large-diameter-welded-pipe-production-unit-17522529930044416.html 3. Gran - unitat de producció de canonades soldades https://img01.v15cdn.com/gallery/4x3/153.webp http://ca.zhengdapipe.com/info/second-the-focus-of-the-industry-17522529993909248.html En segon lloc, el focus de la indústria https://img01.v15cdn.com/gallery/4x3/203.webp http://ca.zhengdapipe.com/info/first-the-status-quo-of-the-steel-pipe-indust-17522529989338112.html Primer, l’estatus quo de la indústria de les canonades d’acer https://img01.v15cdn.com/gallery/4x3/195.webp http://ca.zhengdapipe.com/info/section-2-status-quo-of-steel-pipe-manufacturi-17522529920443392.html Secció 2 Estatus quo de la indústria de fabricació de canonades d'acer https://img01.v15cdn.com/gallery/4x3/115.webp http://ca.zhengdapipe.com/info/section-3-types-specifications-characteristi-17522530046338048.html Secció 3 Tipus, especificacions, característiques i usos de canonades d'acer https://img01.v15cdn.com/gallery/4x3/187.webp http://ca.zhengdapipe.com/info/3-internationalization-17522529980244992.html Tercer. Internacionalització https://img01.v15cdn.com/gallery/4x3/86.webp http://ca.zhengdapipe.com/info/the-second-part-of-the-welded-pipe-manufacturi-17522530101584896.html La segona part del capítol 1 de fabricació de canonades soldades https://img01.v15cdn.com/gallery/4x3/286.webp http://ca.zhengdapipe.com/info/9-why-do-high-frequency-welding-what-are-the-17522530031592448.html 9. Per què soldadura de freqüència alta -? Quines són les característiques de la soldadura de freqüència alta -? https://img01.v15cdn.com/gallery/4x3/123.webp http://ca.zhengdapipe.com/info/2-general-article-on-high-frequency-welded-st-17522530014864384.html 2. Article general sobre High - Freqüència Fabricació de canonades d'acer soldades https://img01.v15cdn.com/gallery/4x3/183.webp http://ca.zhengdapipe.com/info/11-what-equipment-is-needed-for-the-productio-17522530077500416.html 11. Quin equip es necessita per a la producció de canonades d’acer soldades de freqüència -? https://img01.v15cdn.com/gallery/4x3/192.webp http://ca.zhengdapipe.com/info/10-what-raw-materials-are-needed-for-high-fre-17522530030265344.html 10. Quines matèries primeres es necessiten per a les canonades d’acer soldades de freqüència altes -? https://img01.v15cdn.com/gallery/4x3/253.webp http://ca.zhengdapipe.com/info/12-how-is-high-frequency-welded-steel-pipe-pr-17522530148770816.html 12. Com es produeix la canonada d’acer soldada de freqüència alta -? https://img01.v15cdn.com/gallery/4x3/192.webp http://ca.zhengdapipe.com/info/13-what-are-the-other-methods-of-welding-17522530067899392.html 13. Quins són els altres mètodes de soldadura? https://img01.v15cdn.com/gallery/4x3/95.webp http://ca.zhengdapipe.com/info/14-how-to-perform-quality-control-on-high-fre-17522530049025024.html 14. Com realitzar el control de qualitat a les canonades d'acer soldades de freqüència altes -? https://img01.v15cdn.com/gallery/4x3/82.webp http://ca.zhengdapipe.com/info/15-how-to-ensure-the-quality-of-high-frequenc-17522530110694400.html 15. Com assegurar la qualitat de les canonades d'acer soldades de freqüència altes -? https://img01.v15cdn.com/gallery/4x3/56.webp http://ca.zhengdapipe.com/info/16-what-tests-do-high-frequency-welded-steel-17522530120606720.html 16. Quines proves han de fer les canonades d'acer soldades de freqüència altes -? https://img01.v15cdn.com/gallery/4x3/191.webp http://ca.zhengdapipe.com/info/3-special-chapter-on-the-manufacture-of-high-17522530066408448.html 3. Capítol especial sobre la fabricació de tubs rodons soldadors de freqüència -. Què és un tub rodó soldat de freqüència alts -? Hi ha algun altre nom? https://img01.v15cdn.com/gallery/4x3/183.webp http://ca.zhengdapipe.com/info/18-which-step-is-the-most-important-step-in-t-17522530060493824.html 18. Quin pas és el pas més important en el procés de producció de tubs rodons soldats de freqüència alts -? Per què? https://img01.v15cdn.com/gallery/4x3/113.webp http://ca.zhengdapipe.com/info/19-what-problems-are-likely-to-occur-in-the-p-17522530206770176.html 19. Quins problemes és probable que es produeixin en la producció de tubs rodons soldadors de freqüència alts -? Com solucionar -ho? https://img01.v15cdn.com/gallery/4x3/173.webp http://ca.zhengdapipe.com/info/20-what-is-high-frequency-welded-square-pipe-17522530069931008.html 20. Què és la canonada quadrada soldada de freqüència alta -? Hi ha algun altre nom? https://img01.v15cdn.com/gallery/4x3/98.webp http://ca.zhengdapipe.com/info/22-what-problems-are-likely-to-occur-in-the-p-17522530152096768.html 22. Quins problemes es poden produir en la producció de canonades quadrades soldades de freqüència altes -? Com solucionar -ho? https://img01.v15cdn.com/gallery/4x3/76.webp http://ca.zhengdapipe.com/info/21-what-is-the-difference-between-high-freque-17522530102895616.html 21. Quina diferència hi ha entre la canonada quadrada soldada de freqüència alta -? https://img01.v15cdn.com/gallery/4x3/260.webp http://ca.zhengdapipe.com/info/24-what-raw-materials-are-needed-for-spiral-w-17522530107696128.html 24. Quines matèries primeres es necessiten per a canonades soldades en espiral? https://img01.v15cdn.com/gallery/4x3/107.webp http://ca.zhengdapipe.com/info/23-what-is-spiral-welded-pipe-are-there-any-17522530107302912.html 23. Què és la canonada soldada en espiral? Hi ha algun altre nom? https://img01.v15cdn.com/gallery/4x3/180.webp http://ca.zhengdapipe.com/info/26-how-is-the-production-of-spiral-welded-pip-17522530142954496.html 26. Com es diferencia la producció de canonada soldada en espiral? https://img01.v15cdn.com/gallery/4x3/241.webp http://ca.zhengdapipe.com/info/25-what-equipment-is-needed-for-spiral-welded-17522530136679424.html 25. Quin equip es necessita per a canonades soldades en espiral? Quin és el principi del dispositiu? https://img01.v15cdn.com/gallery/4x3/169.webp http://ca.zhengdapipe.com/info/27-what-are-the-processes-in-the-production-o-17522530102322176.html 27. Quins són els processos en la producció de canonades soldades en espiral? https://img01.v15cdn.com/gallery/4x3/85.webp http://ca.zhengdapipe.com/info/27-2-what-is-the-function-of-leveling-17522530108843008.html 27.2. Quina és la funció de nivell? https://img01.v15cdn.com/gallery/4x3/223.webp http://ca.zhengdapipe.com/info/27-1-what-is-the-function-of-feeding-uncoilin-17522530097898496.html 27.1. Quina és la funció de l’alimentació de desnivell? https://img01.v15cdn.com/gallery/4x3/100.webp http://ca.zhengdapipe.com/info/27-3-what-is-the-function-of-shear-butt-weldi-17522530122605568.html 27.3. Quina és la funció de la soldadura del cul de cisalla? https://img01.v15cdn.com/gallery/4x3/101.webp http://ca.zhengdapipe.com/info/27-5-what-is-the-role-of-delivery-17522530293228544.html 27,5. Quin és el paper del lliurament? https://img01.v15cdn.com/gallery/4x3/284.webp http://ca.zhengdapipe.com/info/27-4-what-is-the-function-of-edge-cutting-17522530126734336.html 27.4. Quina és la funció del tall de vora? https://img01.v15cdn.com/gallery/4x3/100.webp http://ca.zhengdapipe.com/info/27-6-1-what-is-a-molding-angle-17522530170528768.html 27.6.1. Què és un angle de modelat? https://img01.v15cdn.com/gallery/4x3/275.webp http://ca.zhengdapipe.com/info/27-6-what-is-the-role-of-molding-17522530158650368.html 27.6. Quin és el paper del modelat? https://img01.v15cdn.com/gallery/4x3/181.webp http://ca.zhengdapipe.com/info/27-9-what-parameters-need-to-be-adjusted-for-17522530179785728.html 27,9. Quins paràmetres s’han d’ajustar per a soldadura interna i externa? https://img01.v15cdn.com/gallery/4x3/41.webp http://ca.zhengdapipe.com/info/27-8-what-is-the-function-of-external-welding-17522530158519296.html 27,8. Quina és la funció de la soldadura externa? https://img01.v15cdn.com/gallery/4x3/78.webp http://ca.zhengdapipe.com/info/27-7-what-is-the-function-of-internal-welding-17522530167825408.html 27.7. Quina és la funció de la soldadura interna? https://img01.v15cdn.com/gallery/4x3/258.webp http://ca.zhengdapipe.com/info/27-10-what-is-the-role-of-the-primary-tube-in-17522530201674752.html 27.10. Quin és el paper de la inspecció d’incisió del tub primari? https://img01.v15cdn.com/gallery/4x3/272.webp http://ca.zhengdapipe.com/info/27-12-what-is-the-function-of-a-repair-weld-17522530185602048.html 27.12. Quina és la funció d’una soldadura de reparació? https://img01.v15cdn.com/gallery/4x3/286.webp http://ca.zhengdapipe.com/info/27-11-what-is-the-function-of-slag-cleaning-17522536175805440.html 27.11. Quina és la funció de la neteja d’escòria? https://img01.v15cdn.com/gallery/4x3/186.webp http://ca.zhengdapipe.com/info/28-what-problems-are-likely-to-occur-during-t-17591373924672512.html 28. Quins problemes es poden produir durant la producció de canonades soldades en espiral? Com sorgeixen? Com es poden evitar? 28.1. Causes dels defectes dels porus. https://img01.v15cdn.com/gallery/4x3/80.webp http://ca.zhengdapipe.com/info/27-13-1-what-should-be-noted-when-chamfering-17591373932340224.html 27.13.1. Què s'ha de tenir en compte en el xamfrà? https://img01.v15cdn.com/gallery/4x3/210.webp http://ca.zhengdapipe.com/info/27-13-what-is-the-function-of-a-chamfer-17591373974021120.html 27.13. Quina és la funció d'un xamfrà? https://img01.v15cdn.com/gallery/4x3/92.webp http://ca.zhengdapipe.com/info/28-3-what-are-the-causes-of-defects-17591373989700608.html 28.3. Quines són les causes dels defectes de 夹渣? https://img01.v15cdn.com/gallery/4x3/187.webp http://ca.zhengdapipe.com/info/28-2-what-are-the-solutions-for-pore-defects-17591373930554368.html 28.2. Quines són les solucions per als defectes dels porus? https://img01.v15cdn.com/gallery/4x3/190.webp http://ca.zhengdapipe.com/info/28-5-what-are-the-causes-of-edge-biting-defec-17591373936436224.html 28.5. Quines són les causes dels defectes de mossegada de vora? https://img01.v15cdn.com/gallery/4x3/281.webp http://ca.zhengdapipe.com/info/28-4-what-are-the-solutions-to-the-inclusions-17591373930046464.html 28.4. Quines són les solucions al defecte de les inclusions? https://img01.v15cdn.com/gallery/4x3/161.webp http://ca.zhengdapipe.com/info/28-9-crack-defects-17591373956211712.html 28.9. Defectes d'esquerdes? https://img01.v15cdn.com/gallery/4x3/54.webp http://ca.zhengdapipe.com/info/28-8-what-are-the-measures-to-address-incompl-17591373950264320.html 28.8. Quines són les mesures per abordar la penetració incompleta i la manca de defectes de fusió? https://img01.v15cdn.com/gallery/4x3/112.webp http://ca.zhengdapipe.com/info/28-7-lack-of-fusion-and-incomplete-penetratio-17591373948036096.html 28.7. Manca de fusió i defectes de penetració incomplets? https://img01.v15cdn.com/gallery/4x3/162.webp http://ca.zhengdapipe.com/info/28-6-what-are-the-solutions-to-edge-biting-de-17591373944644608.html 28.6. Quines són les solucions per als defectes de mossegada de vora? https://img01.v15cdn.com/gallery/4x3/149.webp http://ca.zhengdapipe.com/info/29-1-why-conduct-a-static-water-pressure-test-17591373965075456.html 29.1. Per què fer una prova de pressió d'aigua estàtica? https://img01.v15cdn.com/gallery/4x3/152.webp http://ca.zhengdapipe.com/info/29-how-to-ensure-the-quality-of-spiral-welded-17591373962765312.html 29. Com garantir la qualitat de les canonades soldades en espiral? Quines proves es requereixen? https://img01.v15cdn.com/gallery/4x3/267.webp http://ca.zhengdapipe.com/info/28-10-what-are-the-solutions-for-crack-defect-17591373955785728.html 28.10. Quines són les solucions per als defectes d'esquerdes? https://img01.v15cdn.com/gallery/4x3/134.webp http://ca.zhengdapipe.com/info/29-2-1-x-what-are-the-inspection-methods-for-l-17591373966566400.html 29.2.1.X Quins són els mètodes d'inspecció per a la inspecció lleugera? https://img01.v15cdn.com/gallery/4x3/128.webp http://ca.zhengdapipe.com/info/29-2-why-do-x-ray-inspection-17591373964141568.html 29.2. Per què-inspecció amb raigs X? https://img01.v15cdn.com/gallery/4x3/9.webp http://ca.zhengdapipe.com/info/29-2-2-what-are-the-advantages-of-tv-observat-17591373967942656.html 29.2.2. Quins són els avantatges de l'observació televisiva? https://img01.v15cdn.com/gallery/4x3/13.webp http://ca.zhengdapipe.com/info/29-3-why-ultrasonic-inspection-17591373953541120.html 29.3.Per què la inspecció per ultrasons? https://img01.v15cdn.com/gallery/4x3/299.webp http://ca.zhengdapipe.com/info/29-2-3-x-what-are-the-inspection-standards-for-17591373967631360.html 29.2.3.X Quins són els estàndards d'inspecció de la llum? https://img01.v15cdn.com/gallery/4x3/154.webp http://ca.zhengdapipe.com/info/1-what-is-hot-dip-galvanizing-17591373974889472.html 1. Què és la galvanització en calent-? https://img01.v15cdn.com/gallery/4x3/118.webp http://ca.zhengdapipe.com/info/30-why-does-spiral-welded-pipe-need-demagneti-17591373972956160.html 30. Per què la canonada soldada en espiral necessita desmagnetització? Què és la desmagnetització? https://img01.v15cdn.com/gallery/4x3/273.webp http://ca.zhengdapipe.com/info/5-what-are-the-advantages-of-hot-dip-galvaniz-17591373976331264.html 5. Quins són els avantatges de la galvanització en calent-? https://img01.v15cdn.com/gallery/4x3/201.webp http://ca.zhengdapipe.com/info/4-what-is-the-value-of-hot-dip-galvanized-ste-17591373961765888.html 4. Quin és el valor de la canonada d'acer galvanitzat en calent-? https://img01.v15cdn.com/gallery/4x3/283.webp http://ca.zhengdapipe.com/info/3-why-should-the-surface-of-steel-products-be-17591373986571264.html 3. Per què s'ha de galvanitzar en calent la superfície dels productes d'acer? https://img01.v15cdn.com/gallery/4x3/176.webp http://ca.zhengdapipe.com/info/2-what-is-the-principle-of-hot-dip-galvanizin-17591373969400832.html 2. Quin és el principi de la galvanització en calent-? https://img01.v15cdn.com/gallery/4x3/15.webp http://ca.zhengdapipe.com/info/5-3-the-coating-is-firmly-bonded-to-the-subst-17591373985637376.html 5.3. El recobriment està fermament unit al substrat https://img01.v15cdn.com/gallery/4x3/57.webp http://ca.zhengdapipe.com/info/5-2-lasting-durability-17591373987128320.html 5.2. Durabilitat duradora https://img01.v15cdn.com/gallery/4x3/21.webp http://ca.zhengdapipe.com/info/5-5-simple-process-and-high-efficiency-17591373994599424.html 5.5. Procés senzill i alta eficiència https://img01.v15cdn.com/gallery/4x3/170.webp http://ca.zhengdapipe.com/info/5-4-comprehensive-protection-17591373998105600.html 5.4. Protecció integral https://img01.v15cdn.com/gallery/4x3/146.webp http://ca.zhengdapipe.com/info/5-7-aesthetic-17591373997630464.html 5.7. Estètica https://img01.v15cdn.com/gallery/4x3/7.webp http://ca.zhengdapipe.com/info/5-6-strong-adaptability-17591373987636224.html 5.6. Forta adaptabilitat https://img01.v15cdn.com/gallery/4x3/228.webp http://ca.zhengdapipe.com/info/5-9-wear-resistance-and-high-temperature-resi-17591373979378688.html 5.9. Resistència al desgast i resistència a altes temperatures https://img01.v15cdn.com/gallery/4x3/114.webp http://ca.zhengdapipe.com/info/5-8-environmental-protection-and-energy-savin-17591373988176896.html 5.8. Protecció del medi ambient i estalvi energètic https://img01.v15cdn.com/gallery/4x3/224.webp