攻牙机 meaning in English
ta ing machine
tapping machine
Examples
- Currently , we have several dozens of production equipments , including screw heading machines , screw thread rolling machines , nut shaping machines , tapping machines , punching machines and lathes
工厂现拥有螺丝打头机、搓牙机共十多台，螺帽成型机、攻牙机、冲床共十多台，车床、小车床若干。