DIN 2241-2006 产品几何量技术规范(GPS).ISO米制螺纹测量仪器用螺纹定位规.直径1mm~100mm标称螺纹直径的定位塞规和定位环规
Geometrical product specifications (GPS) - Screw setting gauges for measuring instruments for ISO metric screw threads; setting plug gauges and setting ring gauges from 1 mm to 100 mm nominal thread diameter