API 5L GR.B/ASTM A53 GR.B, ACIER AU CARBONE, TUYAU EN ACIER LSAWEXW TIANJINDiamètre extérieur 外径 (mm)USD/TON406457508609.6711.1762812863.6Mur 8$757.95$751.20$757.95$744.44$744.44$744 .44$744.44$744.44Épaisseur 9.53$751.20$737.69$744.44$724.18$724.18$724.18$724.18 724,18 $壁厚 (mm)10717,42 $703,91 $710,67 $724,18 $72 $