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When faced with a lot of keys, you can easily and quickly find out what is the key that you need? People often because open the door to many keys. This design through a sensing to achieve lock and key using the infrared sensing technology, when the door close key, key will light up and let us know what the fast is the key to the door. To save time and convenient life.
Jingdezhen Ceramic Institute
jiangxi jingdezhen, China
Jingdezhen Ceramic Institute
jiangxi jingdezhen, China
tongliang Shen lei Chen
yanwei Wang qiang Li