API 5L/ASTM A53 GR.B (Pìoba STEEL STEEL ERW Leudaichte teth) Tighead balla taobh a-muigh trast-thomhas FOB TIANJIN Taobh a-muigh Trast-thomhas Balla Tighead FOB TIANJIN 外 径 (mm) 壁厚 (mm) 离港价 USD/TON 外 径 (mm) (mm) 离港价 USD/TON 245, 273 5.0-9.28 553.66 450, 457, 508, 530 6.5-...
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