API 5L/ASTM A106 GR.B, choksiz uglerodli po'lat quvuri língíngēng DN mán OD(mm) SCH40 (6m/5.8m) SCH80(6m/5.8m) SCH160(6m/5.8m)WT FOBbn WT FOB chài WT FOB (mm) USD/TON (mm) USD/TON (mm) USD/TON 1/4” 13,7 2,24 1,405,35 3,02 1,405,35 / / 3/8” 17,1 2,31 1,33....
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