转动轴座主销孔凸台
trunnion socket kingpin boss
高精度销孔孔系
Pin hole series with high precision
销孔凸点
Emboss Phenomenon in Pin Hole
扁销孔加工定位方式
the machining and positioning methods of flat pinh
齿轮定位销孔铰孔
gear dowel pin hole reaming
出销孔
Alternate Leniency and Severity
alternate named file