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, 863,601 1,079 1,082 1,079 1,079 Qalinligi 9,53 1,086 1,071 1,079 1,055 1,055 1,058 1,055 1,055 chàn (mm) 10 1,047 1,03...
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