As steel pipe supplier, no matter seamless or welded steel pipe like ERW steel pipe, we would offer all the basic types for conveying water, oil, gas and other goods. Today, we would focus on the technological process belonging to welded pipe.

Oiled marking: Steel pipe, after passing, they needed to be oiled to prevent corrosion, and according to user requirements for making.

Leveling milling: The flat steel anvil machine so that the original curl,and then though the edge milling machine for two-sided steel milling, so as to meet the requirements of the plate width, plate edge parallelism and groove shape.

Shear molding: The steel plate production line along the outer edge of the spiral curl needs to make into a tube.

Butt cut: Double-sided submerged arc welding using advanced technology to pre-welded, internal welding,outside welding. The welded steel pipe using a plasma-foot cut to specification length.