... Appearance of Steel Pipe: Round, Square, Rectangular Welded Type: ERW LSAW SSAW High Quality Pipes! Name: Welding Steel Pipe Description: Weld ... type: ERW LSAW SSAWPipe appearance: Round pipe, Square pipe, Rectangular pipeStandard: API, ASME ... , ASTM, DIN, ISO, JIS Outside diameter:ERW 1/2"- 48"LSAW 1/2"- 60" (Above 34", there are 2 pieces weld ...