Sanhe Tongfei Refrigeration Co., Ltd. is a high-tech enterprise integrating scientific research, development, manufacturing, sales and service. The company is located in Sanhe City, the Pearl of Jingdong, covers an area of 37,300m2, and has a plant area of 20,000m2. It is a formal member of "China Refrigeration Society" and "China Machine Tool Industry Association".

        The company has a special laboratory for product performance testing and an independent research and development center, and two Langfang city-level R & D centers "industrial refrigeration" and "laser equipment temperature control unit". In 2016, the provincial-level R & D center "Industrial Refrigeration (Heat Pump) Engineering Technology Research Center" was established by the Science and Technology Department. Imported laser cutting machine, CNC turret punching, CNC shearing, folding, cutting and other sheet metal processing equipment; copper tube straightening and bending machine, heat exchanger forming machine, hydraulic bending machine, CNC high-speed fin punch, hydraulic horizontal Pipe expander, anaerobic welding, pressure-holding leak detection, air tightness leak detection and other professional refrigeration production equipment; product assembly, debugging, inspection, packaging production line; has a product testing environment simulation laboratory, and is equipped with multiple sets German Testo thermal imager, EMC group pulse generator, anemometer, wind pressure difference tester, safety tester, H25-IR refrigeration system air tightness testing equipment imported from the United States.