API 5L/ASTM A53 GR.B, CARBON STEEL, LSAW STEEL QURU FOB TIANJIN tashqi diametri màn (mm) USD/TON 406 457 508 609,6 711,1 762 812 861,601, devor 1050 1050 1050 1050 Qalinligi 9,53 1074 1043 1050 1,027 1,027 1,027 1,027 1,027 chàn (mm) 10 1,035 1,00...
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