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The multihole key / the keys

The multihole key
The multihole key

When people have several keys of the same shape, it is difficult to distinguish them. Multihole key is designed to help you out of the trouble.There are 3 holes in the upper right of the multihole key. Each hole represents different (functions). Multihole key is used to distinguish between the keys of similar shape.Take household keys as an example, hole A in a key is for the bedroom A, hole B in a key is for the be-droom B. hole C in a key is for the bedroom C. In this way we can distinguish them easily.
When the keys are vertical, because of the vertical gravity, they will appear dislocation obviously to be identified more easily.

University

South China Agricultural University

South China Agricultural University
GuangZhou, China

Design

South China Agricultural University

South China Agricultural University
GuangZhou, China

Linghui Zhu,Xuexing Wu,Peizheng Zhu,Zhiqiang Wang