Process and mechanism of band cut is the process and mechanism of barrel life end.

弹带削光的过程和机理也就是身管寿命终止的过程和机理。

youdao

Process and mechanism of band cut is the process and mechanism of barrel life end.

弹带削光的过程和机理也就是身管寿命终止的过程和机理。

youdao