ERW PIPE: 1) thickness:0.5-20mm 2) size:8-400mm 3) Length:3-6m 4) Material:Q195,Q235,Q345 ERW PIPE:1) Materials can be ... or hot dipped Zinc-coated for round,equal,rectangle steel pipe.8) Producing: Seamless,Welded,hot rolled,pre glavanized hot rolled ... formade weld;API8) Thickness: 0.5 ~ 25mm9) Standard: GB/T6728, ASTM-A5310) Using: Structural Tubing,Forniture tube,For water,Gas Severage ERW Pipe