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鋼管規格表規格外徑mm公稱內經DN15DN20DN25DN32DN40DN50DN65DN80DN100DN125DN150DN200DN200英寸1／2寸3／4寸1寸1.25寸1.5寸2寸2.5寸3寸4寸5寸6寸8寸8寸21.326.933.742.448.360.376.188.9114.3140168.3219.1219.12.82.83.23.53.53.84444.54.566.5（焊管）（熱鍍鋅管）2.452.452.83.063.063.3253.53.253.5444.54.54.54.7555.55.5壁厚mm最小壁厚mm加厚mm米重e69da5e887aa7a686964616f31333433623761kg1.281.662.413.363.875.297.118.3810.8815.0418.1831.53根重kg7.689.9614.4620.1623.2231.7442.6650.2865.2890.24109.08189.1836.12216.72米重kg1.3571.762.5543.564.15.6077.5368.8811.5315.94219.27根重kg8.1410.5615.3221.3624.633.6445.2153.2869.1898.65115.62焊管（6米定尺）鍍鋅管（6米定尺）鍍鋅鋼管尺寸規格表公稱口徑mm68101520253240506580100125150外徑mm1013.51721.326.833.542.3486075.588.5114140165壁厚mm2.12.753.53.153.44.255.15455.254.2577.57.5鍍鋅管壁黑鐵管增加的重量系數普通鋼管0.641.0561.0561.0471.0461.0391.0391.0361.0361.0341.0321.0321.0281.028加厚鋼管1.0591.0461.0461.0391.0391.0321.0321.031.0281.0281.0271.0261.0231.023鍍鋅鋼管尺寸規格表說明：W=C*﹝0.0

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