Geometrical product specifications (GPS) - GO workshop screw plug gauges, check and setting plugs for general purpose ISO metric screw threads with nominal diameters from 1 mm up to 40 mm
产品几何规范(GPS)-“GO”螺纹塞规.第1部分:“GO”车间量规.公称直径为1mm至40mm的ISO通用公制螺纹用塞规的检查和设置