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国标镀锌管规格规公称内径DN15DN20DN25DN32DN40DN50DN65DN80DN100DN125DN150DN200DN200格英寸1/23/411.251.522.5345688外径mm21.326.933.742.448.360.376.188.9114.3140168.3219.1219.1壁厚mm最小壁厚mm2.82.452.82.453.22.83.53.063.53.063.83.3254.03.54.04.04.54.56.0(焊管)6.5(热镀锌)焊管(6米定尺)镀锌管(6米定尺)米重kg根重kg米重kg根重kg1.287.681.3578.141.669.961.7610.562.4114.462.55415.323.3620.163.5621.363.8723.224.1024.605.2931.745.60733.647.1142.667.53645.218.3850.288.8853.2810.8865.2811.5369.1815.0490.2415.94298.6518.18109.2719.27115.6231.53189.1836.12216.72