water conveying galvanized steel pipe 1) standard: BS1387,ASTM A53,GB/T3091,EN10255 2) OD: ... 21.3-1420mm 3) WT:1.0-55mm water conveying galvanized steel pipe 1. standard: BS1387,ASTM A53,GB/T3091,EN102552. OD ... , Europe, Middle East, Southeast China. ERW/LSAW WELDED STEEL PIPE NON-GALVANIZED AND HOT DIPPED GALVANIZEDSTANDARD: ASTM A53, BS1387, GB/T3091OD×WT ...