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Coated with plastic inside and galvanized outside composite pipe
Product Features:
With hot-dip galvanized steel pipe as the base material, the drawing coating process is adopted. After preheating at high temperature, the epoxy resin powder (EP) or polyethylene powder (PE) is coated on the inner wall of the base pipe after chemical or physical treatmente.
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INFORMATION
⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ The products meet the construction standards : GB/T28897-2012 The inner wall of pipes and fittings shall comply ：《 Hygienic Safety Evaluation of Domestic Drinking Water Transmission and Distribution Equipment and Protective Materials》(2001). BI-YUAN Hot-dip galvanized steel pipe, the base is high-frequency welded pipe, hot-dip galvanized after degreasing, water washing, pickling, rinsing, solvent dipping, drying and other processes. The quality conforms to the national GB/T3091 of the People’s Republic of China
Production process： Degreasing → Water washing → Pickling → Rinsing → Dipping → Solvent drying → Hot-dip galvanizing → Cooling → Passivation treatment → Final inspection → Packaging → Storage PIPE COMPARATIVE ADVANTAGES AND DISADVANTAGES
（Steel plastic base pipe）
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