... and with the most competitive price. --Welded Square Steel Pipe/Welded Square Steel Tube-- Material of Welded Square Pipe: 1) Q195, Q215, Q235 ... ) STBA25, STBA25, STBA26; A53(A, B), A333, A369 Standard of Welded Square Pipe: BS, ASTM, DIN, JIS, ASME O. D of ... Section Shape: Suqare Product Type: Square tubes, ERW tubes, Welded steel pipe, Galvanized steel pipe etc.; Usage: Be widely used in furniture ...