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国标热镀锌钢管规格、尺寸、理论重量表规格外径壁厚最小壁厚焊管（6米定尺）镀锌管（6米定尺）mmmmmm米重kg根重kg米重kg根重kg公称内径英寸DN151/221.32.82.451.287.681.3578.14DN203/426.92.82.451.669.961.7610.56DN25133.73.22.82.4114.462.55415.32DN321.2542.43.53.063.3620.163.5621.36DN401.548.33.53.063.8723.224.124.6DN50260.33.83.3255.2931.745.60733.64DN652.576.143.57.1142.667.53645.21DN80388.948.3850.288.8853.28DN1004114.3410.8865.2811.5369.18DN12551404.515.0490.2415.94298.65DN1506168.34.518.18109.0819.27115.62DN2008219.16 （焊管）31.53189.18DN2008219.16.5 （热镀锌）36.12216.72