DIN EN 10226-1:2004 有压力紧固连接件的管道螺纹.第1部分:锥形外螺纹和平行内螺纹.尺寸、公差和名称与符号
Pipe threads where pressure tight joints are made on the threads - Part 1: Taper external threads and parallel internal threads - Dimensions, tolerances and designation; German version EN 10226-1:2004