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Easily-identified keys / key

Easily-identified keys

Generally,the key of each room in our house is always the same,which makes us feel confused most of time.To avoid this trouble,we design such a kind of key with different sizes of holes in the key handle.And we can use a key ring to perforate one of the holes,based on the room number,so that we can recognise every one easily.

University

Guangdong University Of Technology

Guangdong University Of Technology
Guangzhou, China

Hailong / Ye ,
Guangdong University Of Technology

Yaxiang/Miao ,
Guangdong University Of Technology

Zhisen/Zhong ,
Guangdong University Of Technology

Shangqing / Deng,
Guangdong University Of Technology