Telescopic safety crawling ladder for hole platform

The utility model discloses a telescopic safety crawling ladder for a hole platform, which relates to the technical field of crawling ladders and comprises a platform, a telescopic mechanism is arranged at the bottom of the platform, an opening is formed in the top end of the platform, two slide rai...

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Bibliographische Detailangaben
1. Verfasser:	RUAN RENXIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL FIXED CONSTRUCTIONS LADDERS
Online-Zugang:	Volltext bestellen
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