发明授权
US4862779A Punching cutter for thin material 失效
冲切刀为薄材料

Punching cutter for thin material
摘要:
A cutter of the present invention comprises a punching member having a punching edge and a receiving member for receiving the punching force of the punching member, the receiving member having a sandwich structure comprising two plate materials and an elastic body held therebetween. Therefore, the receiving member is capable of elastically holding the punching edge during punching.
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