Chen Tong Yuan a high-tech enterprise integrating R & D, production and sales. The total area of the factory is 5000 square meters, the total number of employees is about 200, and the annual output sales are nearly 100 million RMB. Since its establishment, the company has been focusing on outdoor integrated cabinet, cabinet air conditioning, electric cabinet air conditioning, heat exchanger, Thermal energy equipment，embedded switching power supply, power environment monitoring system, distribution cabinet research and development, production and sales.