Cutting protection device for sound insulation glass

The cutting protection device comprises a pushing mechanism and a shielding mechanism, the lower end surface of the pushing mechanism is movably connected to the front end of an adjusting mechanism, the inner wall surface of the lower end of the adjusting mechanism is in threaded connection with a g...

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Bibliographische Detailangaben
1. Verfasser: QIU JINLING
Format: Patent
Sprache:chi ; eng
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