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Double-key / Key

Double-key
Double-key

Everyone owns a string of keys,including home,office,bicycle and so on. not only is it cumbersome to keep a key with oneself,but also will cause inconfidence. The emergence of Doublekey can solve this problem effectively.By merging two keys into one key,it’s effective to solve the problem that the keys numerous and red tape.push the switch to change the key which you want,and open different lock in different mode.

University

Shanghai Normal University

Shanghai Normal University
Shanghai, China

Design

Shanghai Normal University

Shanghai Normal University
Shanghai, China