美标-国标管道尺寸对照表

美标管子规格对照表英制INCH公制(外径*壁厚）mm国标（DN）mm国标外径（mm)备注3/8"10Sφ17.1×1.6540Sφ17.1×2.3180Sφ17.1×3.20STDφ17.1×2.31