API 5L/ASTM A53 GR.B, CARBON STEEL, LSAW STEEL QURU FOB TIANJIN tashqi diametri chàn (mm) USD/TON 406 457 508 609,6 711,1 762 812 863,601, devor 863,601, 863,6018 1035 1035 1035 1035 Qalinligi 9,53 1043 1027 1035 1,012 1,012 1,012 1,012 1,012 ...
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