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Men zhi yan / Eye door

Men zhi yan
Men zhi yan

This design can solve the toilet can immediately know whether there are vacancies, mutually convenient between people do not bother.

University

Tianjin-Universität für Wissenschaft und Technologie in China

Tianjin-Universität für Wissenschaft und Technologie in China
tian jin, China

University

Tianjin-Universität für Wissenschaft und Technologie in China

Tianjin-Universität für Wissenschaft und Technologie in China
tian jin, China

University

Tianjin-Universität für Wissenschaft und Technologie in China

Tianjin-Universität für Wissenschaft und Technologie in China
tian jin, China

Design

Tianjin-Universität für Wissenschaft und Technologie in China

Tianjin-Universität für Wissenschaft und Technologie in China
tian jin, China

renfei Bai(Instructor)School of Mechanical Engineering