shinestar steel pipe corporation Our Products are: ERW Steel Pipe: OD:21.3-610 mm WT: 0.5-22 mm L: top 18 M (Without jointer) LSAW Steel Pipe: OD: 323.9-2150 mm WT: 6.0-80 mm L:top 14 M (Without jointer) SSAW Steel Pipe: OD:219-3048 mm WT: 5.0-30mm L: top 32 M (Without jointer) Anti-corrosion Coating: FBE,2PE, 3PE, 2PP, 3PP, epoxy coal asphalt, inside and outside solvent free epoxy lining, cement mortar lining, etc. OD: 21.3-3200MM Standards: API, ASTM, EN, JIS, BS, etc. Steel Grade: GR.A, GR.B, X42-X100,H40, J55, K55, S195T, S355J2H, ST33, ST42, STK400, STK500, Q215, Q235, Q345,etc.