API 5L/ASTM A106 GR.B, Pìoba Stàilinn Gualain 公称通 径 DN 外 OD (mm) SCH40 (6m/5.8m) SCH80 (6m/5.8m) SCH160(6m/5.8m) WT FOB 壁厚WT FOB (mm) USD/TON (mm) USD/TON (mm) USD/TON 1/4" 13.7 2.24 1,475.71 3.02 1,453.16 / / 3/8” 17.1 2.31 1,337.43, 3.31 1,337.43,
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