Pre-punching device for electrical switch bottom box

The utility model relates to a pre-punching device for an electrical switch bottom box. The device comprises a machine base, a mounting plate is horizontally arranged on the machine base, a first aircylinder is horizontally arranged on the mounting plate, a piston of the first air cylinder is connec...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	LIAO WENXIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CUTTING CUTTING-OUT DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING,CUTTING-OUT, STAMPING-OUT OR SEVERING HAND CUTTING TOOLS PERFORATING PERFORMING OPERATIONS PUNCHING SEVERING SEVERING BY MEANS OTHER THAN CUTTING STAMPING-OUT TRANSPORTING
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