Established in 1998, Ningbo Sanheng Refrigeration Automatic Control Components Co., Ltd. is a manufacturing enterprise specializing in the research, development, production and sales of automatic control components for household appliances and industrial equipment. Our mainly products include solenoid valve, expansion valve, ball valve, etc. The company is headquartered in Ningbo, Zhejiang Province and has branches in many cities. In the company's decades of development, we have a professional refrigeration technology team with rich practical experience, homemade research and development of special welding assembly line and unique testing equipment, and mastered the advanced charging technology.