BS1387/ASTM A53 hot dipped galvanized steel pipe 1) standard: BS1387,ASTM A53,GB/T3091,EN10255 2) size: 1/2"-56" BS1387/ASTM ... galvanized steel pipe1. standard: BS1387,ASTM A53,GB/T3091,EN102552. Size: 1/2"-56"3. WT:1.0-60mm4. Length: max 12m 5. Pipe ... , Europe, Middle East, Southeast China. ERW/LSAW WELDED STEEL PIPE NON-GALVANIZED AND HOT DIPPED GALVANIZEDSTANDARD: ASTM A53, BS1387, GB/T3091OD ...