API 5L/ASTM A106 GR.B, Tub çeliku karboni pa probleme DN 外径OD(mm) SCH40(6m/5.8m) SCH80(6m/5.8m) SCH160(6m/5.8m) SCH160(6m/5.8m) 壁OB 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 1,337,41,
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