螺钉不能直接钉在挂板面上。如果没有钉槽，用钉眼冲孔器做一个。
Screw can not directly on the siding. If there is no nail groove, made a nail hole.
本发明公开了一种模具装置，包括：下部容纳模具、具有细微孔形状的圆形冲孔器和设置在下部容纳模具和圆形冲孔器之间的PET。
A die apparatus is composed of a lower receiving die, a round punch having the shape of a fine hole, and PET provided between the lower receiving die and the round punch.
本机由机体上下冲孔筛箱、振动源、机座及减震器三组部件构成，机体与机座连接由4档减震器金属弹簧对称定位。
The Machine consists of up-down stamped screen box, vibrator and shock absorber, 4-speed vibration-reducing metal spring connects body to base in symmetrical position.
运用金属塑性成形原理，通过六氟化硫断路器壳体孔翻边的工艺计算，介绍了一种曲面孔翻边预冲孔的一种近似工艺计算方法。
Using metal plasticity forming theory, by the technology calculation of sulfur hexafluoride breaker shell flanging, a technology calculation method was introduced about pre-punching flanging.
圆形冲孔 器穿过放置在PET上的工作板，以便使冲掉的片留在PET内，由此钻出细 微孔。
The round punch is passed through a work plate placed on the PET to cause a punched-out piece to remain within the PET, thereby boring the fine hole.
圆形冲孔 器穿过放置在PET上的工作板，以便使冲掉的片留在PET内，由此钻出细 微孔。
The round punch is passed through a work plate placed on the PET to cause a punched-out piece to remain within the PET, thereby boring the fine hole.
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