API 5L/ASTM A53 GR.B, KARBON STEEL, LSAW po'lat quvuri TIANJIN tashqi diametri mín (mm) USD/TON 406 457 508 609,6 711,1 762 812 863,60 dollar, devor 863,60$ 1019,4$1019,4$1019,4$1019,4$1019,4 Qalinligi 9,53$1027,2$1011,6$1019,4 $995,9$995,9$995...
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