API 5L GR.B/ASTM A53 GR.B (PIPE ERW STEEL HOT EXPANDED) Ketebalan Tembok Luar Diameter FOB TIANJIN Ketebalan Tembok Luar Diameter FOB TIANJIN 外径 (mm) 壁厚 (mm) 离港价 USD/TON 价 USD/TON /TON Q235B Q345B 外径 (mm) 壁厚 (mm) Q235B Q345B 245, 273 5.0-9.28 565.67 610.31 450,...
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