Universal knob assembly for bracket clamping and perforating
The utility model discloses a universal knob assembly for bracket clamping and perforating, which comprises a knob part, the knob part comprises an upper shell and a lower shell, the upper shell and the lower shell are detachably connected to form the knob part, and the lower shell is provided with...
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Format: | Patent |
Sprache: | chi ; eng |
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