用机器钻出安装指针的中心孔及导向孔，以确保铜条在冲切工序固定位置。
The machine drills the "center holes" for the hands as well as the "pilot holes" which will guarantee the positioning of the strip during blanking operations.
用机器钻出安装指针的中心孔及导向孔，以确保铜条在冲切工序固定位置。
The machine drills the "center holes" for the hands as well as the "pilot holes" which will guarantee the positioning of the strip during blanking operations.
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