Hoisting device for building engineering construction

The invention discloses a building engineering construction hoisting device which comprises a base, a lifting device, a self-falling bearing device and a magnetic control type physical state regulation and control device, the lifting device is arranged on the base, the self-falling bearing device is...

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Bibliographische Detailangaben
1. Verfasser: CAO PEICAI
Format: Patent
Sprache:chi ; eng
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