Double - sided submerged arc spiral welded pipe

Double-sided submerged spiral welded pipe advantages, thick-walled steel pipe surface of the solid oxide film to soft water, including all water quality, including excellent corrosion resistance, even if buried there is excellent corrosion resistance, but also Good erosion resistance. Thick-walled spiral steel pipe, the strong oxide film on the surface of the thick-walled steel pipe makes the stainless steel excellent corrosion resistance in all water quality including soft water, and has excellent corrosion resistance even in buried use, Good erosion resistance.