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地铁扶手 / The subway armrest

地铁扶手

More Stable:V-shaped structure that allows passengers to hold more stabl.
Prevent Rely:The structure can be raised to prevent passengers
rely on the armrest to inconvenience other passengers.
More People To Use:Spiral structure allows more passengers to use.

University

Nanchang University

Nanchang University
NanChang, China

heqi zhao,
Nanchang university

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