Zhejiang Zeshun Refrigeration Technology Co., Ltd. is a project company of Wenling Hengfa Aircondition Components Co. Ltd.,which main creates expansion valve serials projects. We was established in 1986 and has a history for nearly 40 years，under it are Zhejiang Zeshun Refrigeration Technology Co., Ltd. and Shanghai Xinao Industry Development Co., Ltd.. We are a professional manufacturer of home air conditioning parts,vehicle air conditioning parts,air conditioning pipeline parts, home self-balancing expansion valves, new energy electric vehicle self-balancing expansion valves,and provide supporting services for domestic and foreign famous air conditioning production companies. Our main customers are Fujitsu General、Daikin、Hitachi and Japanese companies, and export to TSI America、Rheem America、York America、Goodman America and other companies. Our company with technical team, adhere to people-oriented and scientific and technological innovation concepts, through continuous efforts and more than ten years of research and development tests, successfully develop self-balancing expansion valves for home air conditioning and new energy vehicle air conditioning, and win a number of national invention patents and utility model patents.