Gateway closing device

The invention discloses a gateway closing device. The gateway closing device comprises a locking mechanism. The locking mechanism comprises locking discs and a clamping stop part matched with the locking discs to play a role in locking. The locking discs include the upper disc and the lower disc, th...

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Bibliographische Detailangaben
1. Verfasser:	YAN JINBO
Format:	Patent
Sprache:	eng
Schlagworte:	ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES FIXED CONSTRUCTIONS
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