Cleaning device for elevator maintenance

The cleaning device for elevator maintenance comprises an elevator car, a protection groove is formed in the bottom of the inner wall of the elevator car, a dustproof pad is movably connected into theprotection groove, a positioning plate is fixedly connected to the top of the dustproof pad, the top...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: WEI WEIYING
Format: Patent
Sprache:chi ; eng
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