Our company has 2 spiral seam weld pipe production lines with complete quality checking system and advanced equipments, which assure the quality, and the skilled workers assure the high productivity. The specification of the pipe is Φ219-Φ1,420 spiral seam double-side submerged arc weld pipe with wall thickness 5-16mm. The products are widely used in the power plant construction, petroleum and nature gas transmission, water supply and drainage in urban and rural area, industry fluid transmission, construction piling and other steel structure projects.