搜索
管径单位对照表1分(1/8寸)DN63.18mm2分(1/4寸)DN86.35mm3分(3/8寸)DN109.53mm4分(1/2寸)DN1512.70mm6分(3/4寸)DN2019.05mm1寸DN2525.40mm1寸2分(11/4寸)DN3231.75mm1寸5分(11/2寸)DN4038.10mm2寸DN5050.80mm2.5寸DN6563.50mm3寸DN8076.20mm4寸DN100101.60mm5寸DN125127.00mm6寸DN150152.40mm8寸DN200203.20mm10寸DN250254.00mm12寸DN300304.80mm*1英寸=25.4毫米=8英分