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''13.72.241.559.97 3.021.559.97 //3/8''17.12.311.401.83 3.21.401.83 //1/2' '21.32.771.140,90 3.731.140,90 4.781.204,15 3/4''26.72.871.109.