Geometrical product specifications (GPS) - GO workshop screw plug gauges, check plugs and setting plugs for general purpose ISO metric screw threads with nominal diameters over 40 mm up to 200 mm
产品几何技术规范(GPS)-“GO”螺纹塞规.第2部分:“GO”车间量规.公称直径超过40mm至200mm的ISO通用公制螺纹塞规的检查和设置