1 | | | erw steel pipe Specification: ERW STEEL PIPES/ERW CARBON STEEL PIPES Detail: Steel Grade: BS:1387, EN10217:S185, S235,S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44, ST52 ASTM A 53: Gr. A, Gr B, Gr C, Gr.D API 5L: A, B, X42, X46, X52, X56, X60, X65 X70 GB/T9711... |