Shenyang Chengde Steel Pipe Co.,Ltd.: Main products: carbon steel seamless pipe ASTM A106 Grade B, alloy steel seamless pipe ASTM A335 P11 P22 P5 P9 P91, line pipe API 5L B X42 X52 X60, BS EN10210 S235JRH S355J2H, pipe fittings ASTM B16.9 A234 WPB

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