screw ring gauge 中文意思是什麼
screw ring gauge
解釋
螺紋環規-
Technical specification for internal screw gauge for wire thread insert and standard tapping ring
鋼絲螺套用內螺紋的螺紋量規及標準螺孔環通用規范 -
Screw ring gauge
螺紋環規
分享友人