API 5L GR.B/ASTM A53 GR.B, KARFE KARFE, LSAW STEEL PIPE FOB TIANJIN Waje Diamita 外径 (mm) USD/TON 406 457 508 609.6 711.1 762 812 863.6 6 6 bango 3 668 668 Kauri 9.53 669 656 663 644 649 644 649 649 壁厚 (mm) 10 637 624 631 644 649 644 649 649 12...
Kara karantawa