镀锌钢管理论重量表规格外径mm 壁厚mm最小壁厚mm焊管（6 米定尺）镀锌管(6 米定尺）米重kg根重kg米重kg 根重kg公称内径英寸DN151/221.32.82.451.287.681.3578.14DN203/426.92.82.451.669.961.7610.56DN25133.73.22.82.4114.462.55415.32DN321.2542.43.53.063.3620.163.5621...

时间:2025-01-27 10:49栏目:行业资料