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T型接口离心球墨铸铁管技术参数表TechnicalParametersofT-TypejointCentrifugalDuctileCastironPipes公称直径DN(mm)外径DN(mm)壁厚(mm)承口凸部近似重量kg球铁管每米重量（直管部分）kg标准工作长度总重量Kg(L=6000mm)每公里用管数（根）每公里敷设重量（吨）NominalDiameterOutsideDiameterWallThicknessApproximateWeightofSocketMassKg/mMassKg/LengthNumberofPipesPerMilePipeweightPerMile(Tons)80986.03.412.276.516712.7701001186.04.315.19516715.8651501706.07.122.814416720.0482002206.310.330.619416732.3982502746.814.240.225516742.5853003267.218.650.832316753.9413503787.723.763.240316767.3014004298.129.375.548216780.4844504808.638.389.357416795.8585005329.042.8104.3669167111.7236006359.959.3137.3882167147.29470073810.879.1173.91123167187.54180084211.7102.6215.21394167232.79890094512.6129.6260.21691167282.3971000104813.5161.3309.32017167336.8391100115214.4194.7362.82372167396.1241200125515.3237.7420.12758167460.586