Underground channel entrance manger plate shutter door

The utility model discloses an underground channel entrance manger plate shutter door, including two scroll box, be provided with the spool among the scroll box, the gate flap contracts on the spool, two relative one sides of scroll box all are provided with the gate flap export, be provided with ho...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHENG ZHAODONG, YANG KAI, WANG LAOBIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL FIXED CONSTRUCTIONS FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES LADDERS
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