鏜孔的分類

　　鏜孔的分類

鏜孔能夠分為粗鏜、半精鏜和精鏜。精鏜孔的尺度精度可達IT8～IT7，表麵粗糙度Ra值1.6～0.8μm。

tangkongfenweiyibantangkongheshenkongtangkong

，yibantangkongzaiputongchechuangjiunenggou
，batangdaogudingzaichechuangweizuohuozhegudingzaixiaodaojiashangdounenggou。shenkongtangkongxuyaozhuanyongdeshenkongzuantangchuang
，tangdaoyaojiashangtanggan，haiyaojiashangyeyabengzhanshiyonglengqueyebatiexiesaochu。