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In our daily lives, we are often faced with a very familiar situation,it is very laborious when a key into a key buckle .The "OK" key like the gesture “OK”,is used like the key buckle ,presses the clasp and buckles key ring. It also can be used singly.The key grip is made of fluorescent plastic,it will absorb the light in the day time ,and when we in the dark it will emit light thus help us to find out the keyhole,then open the door.The different colors of the keyrepresents a different room.
Zhengzhou University of Light Industry