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Green Design sperren / Green Design sperren

Green Design sperren
Green Design sperren

This lock is a green -design prodcut, it can provide power which is converted from
mechanical energy by turning the keyand pushing or pulling the door. It can solve the common problem
that we don’t know which direction to turn the key, clockwise or counter-clockwise? And it’s also

difficult to find the right key or keyhole in dark.

University

Xihua University

Xihua University
ChengDu, China

Design

Xihua University

Xihua University
ChengDu, China

Hui Liang Lingfeng Fei