API 5L/ASTM A106 GR.B, tubo de aço carbono sem costura公称通径DN外径OD(mm)SCH40(6m/5,8m)SCH80(6m/5,8m)SCH160(6m/5,8m)壁厚WTFOB壁厚WTFOB壁厚WTFOB(mm)USD/TON(mm)USD/TON(mm)USD/TON1/4''13.72.241.021.38 3.021.021.38 //3/8''17.12.31958.17 3.2958.17 //1/2' '21.32.77768.53 3.73768.53 4.78793.82 3/4''26.72.87730.61 3.91730.6