Jig bushes for drilling and boring purposespress fit bushes and liners.
钻孔和制孔导向装置。钻孔套筒和导架套筒
Improvement of Drilling Jig Structure for Magnetic Pole Platen of Medium Synchronous Machine
中型同步电机磁极压板钻模结构的改进
The term jig should be used only for devices employed while drilling, reaming, or tapping holes.
钻模这个术语只用在服务于钻孔，铰孔或攻丝的装置上。
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