公称直径与英寸对比表(2 页)Good is good, but better carries it.精益求精，善益求善。规格大壁厚最小壁厚焊管(6 米定尺)镀锌管(6 米定尺)外径mmmmmm公称内径英寸米重 kg 根重 kg米重 kg 根重 kgDN151/221.32.82.45 DN203/426.92.82.451.669.961.7610.56DN25133.73.22.82.4114.462.55415.32DN321.2542.43.53.063.3620.163.5621.36DN401.48.33.53.063.8723.224.1024.60DN50260.33.83.3255.2931.745.60733.64DN652.576.14.03.57.1142.667.53645.21DN80388.94.0 8.3850.288.8853.28DN1004114.34.0 10.8865.2811.5369.18DN12551404.5 15.0490.2415.94298.65DN1506168.34.5 18.18109.0819.27115.62DN2008219.16.0(焊管) 31.53189.18 DN2008219.16.5(热镀锌) 36.12216.7)—,<^?（<！^!！>-`、）}，~~>{&》]—《<%公称通径与英寸对比表
