API 5L/ASTM A53 GR.B, KARBON STEEL, LSAW poʻlat quvuri FOB TIANJIN tashqi diametri mín (mm) USD/TON 406 457 508 609.6 711.1 762 812 863.60 $, devor 863.67 $, $15. $1019,4 $1019,4 $1019,4 $1019,4 $1019,4 Qalinligi 9,53$1027,2 $1011,6 $995,9$995,9$995...
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