API 5L GR.B/ASTM A53 GR.B, KARBON STEEL, LSAW po'lat quvurlari EXW TIANJIN Tashqi diametri chàn (mm) USD/TON 406 457 508 609.6 711.1 762 812 88 $ 79.7 Devor 28 $696,17 $696,17 $696,17 $696,17 $696,17 Qalinligi 9,53 $702,72 $689,61 $696,17 $676,50 $676,50 $676,50 $676...
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