Chisel cutting operation of cut, cut cut, cut file, attack thread, the thread sets.

切削性操作 有錾削、锯削、锉削、攻螺纹、套螺纹。

youdao

Chisel cutting operation of cut, cut cut, cut file, attack thread, the thread sets.

切削性操作 有錾削、锯削、锉削、攻螺纹、套螺纹。

youdao