Hot-dip galvanized steel pipes are a composite pipe, so it is essential to evaluate the quality of hot-dip galvanized steel pipes by examining the base material and the quality of the plastic coating.

Steel Pipe

(1) Seamless, verifiable in well-lit areas.

(2) Excellent resistance to pressure, not prone to deformation.

(3) Strong mechanical properties; will not break during the expansion test.

(4) Includes quality warranty certificates and inspection reports.

(5) Free from burrs and other foreign matter; the inner wall is clean and smooth.

(6) The steel pipes are made of carbon steel without impurities, ensuring good hygiene.

2. Plastic Coating:

The product features a smooth texture and excellent craftsmanship, free of burrs.

(2) The internal plastic coating process employs electrostatic adsorption to adhere epoxy resin powder to the inner and outer walls of steel pipes, resulting in a robust and high-hygiene product that is non-toxic and environmentally friendly.

(3) The exterior plastic-coated polyethylene coating features a glossy finish, excellent adhesion, hardness, wear resistance, and smoothness. It is capable of withstanding low temperatures and preventing corrosion.

(4) Odorless and free of irritant smells.