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The rish of life will always forget the key in the keyhole of time.
This design will be set in the key and change the way pick up the keys.
After using will easily look the key on the hard and put it off,
Neverthless reduce the key in the door or car, lowmo tive chance.
Tainan University of Technology
Tainan, Taiwan
Li Xiao-Wen,
Tainan University of Technology