... Pipe: BS, ASTM, DIN, JIS, ASME O. D of Welded Square Pipe: 10mm*10mm~600mm*600mm W. T ... of Welded Square Pipe: 0. ... 6mm~25m Section Shape: Suqare Product Type: Square tubes, ERW tubes, Welded steel pipe, Galvanized steel pipe ... kinds of stainless steel plate, stainless steel pipe, stainless steel bar, stainless steel coil, ...