Shanghai Granville Buddha Microelectronics Co. , Ltd. (Shanghai Crystal Park Microelectronics Co. , Ltd.) is China specializing in the production of automatic door sensors, remote control systems, active passive infrared control, sensor system company. Founded in 2004. Advanced design Technology has won a good market share, the company products are widely applied to industrial automatic doors, supermarkets, commercial buildings, railway stations, hospitals and other occasions.

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