- 2024-04-22董小小小姐
镀锌钢管 表面有热浸镀或电镀锌层的焊接钢管。镀锌可增加钢管的抗腐蚀能力，延长使用寿命。镀锌管国家标准及尺寸标准 GB/T3091-2008 低压流体输送焊接钢管 GB/T13793-2008 直缝电焊钢管 GB/T21835-2008 焊接钢管尺寸及单位长度重量 测量钢管的壁厚是否能够达到车丝管标准厚度要求 外径壁厚最小壁厚mm mm mm 米重kg 根重kg 米重kg 根重kg 公称内径英寸DN151/221.32.82.451.287.681.3578.14DN203/426.92.82.451.669.961.7610.56DN25133.73.22.82.4114.462.55415.32DN321.2542.43.53.063.3620.163.5621.36DN401.548.33.53.063.8723.224.124.6DN50260.33.83.3255.2931.745.60733.64DN652.576.143.5 7.1142.667.53645.21DN80388.948.3850.288.8853.28DN1004114.3410.8865.2811.536
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