国标 无缝钢管型号尺寸
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 DN151/221.32.82.451.287.681.3578.14 DN203/426.92.82.451.669.961.7610.56 DN25133.73.22.82.4114.462.55415.32 DN321.2542.43.53.063.3620.163.5621.36 DN401.548.33.5···
2025-01-23 10:45:14