计算公式：W(kg/m)=0.02466*壁厚*(外径-壁厚)管材序号123456公称口径162025324050162025324050162025321620253240501620253240507080100外径15.719.724.731.639.649.615.719.724.731.639.649.615.719.724.731.615.8719.0525.431.7538.150.820.7526.253240.7546587486.5112壁厚1.21.21.21.21.21.21.61.61.61.61.61.61.21.21.21.21.61.61.61.61.61.62.52.52.52.52.52.5333理论重量0.430.550.700.901.141.430.560.710.911.181.501.890.430.550.700.900.560.690.941.191.441.941.131.461.822.362.683.425.256.188.06JDG管78910111212KBG管3412电线管TC3456123焊接钢管456789钢管理论重量
计算公式：W(kg/m)=0.02466*壁厚*(外径-壁厚)管材序号1234公称口径1620253240507080100125150152025324050708010012515068101240*425*4外径21.2526.7533.542.25486075.588.5114140165壁厚2.752.753.253.253.53.53.75444.54.52.752.753.253.253.503.503.754.004.004.504.50理论重量1.251.632.423.133.844.886.648.3410.8515.0417.811.331.732.573.324.075.177.048.8411.5016.8522.290.2220.3950.6170.8881.260.79水煤气钢管5678910111234镀锌钢管56789101112镀锌圆钢341镀锌扁钢1
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