The registered address of sang-in refrigeration technology (zianjin) ltd. Is workshop no. 1 of the biang industrial park road no. 3 in zinnam township, tianjin city. The registration authority is the market supervision authority of zinnan district, tianjin city. The legal entity is represented by wang xue, and operates on general projects: technical services, technology development, technical advice, technology exchange, technology transfer, technology diffusion; manufacture of refrigeration and air-conditioning equipment; sale of refrigeration and air-conditioning equipment; installation services for general machinery; wholesale distribution of hardware products; retail sale of hardware products; sale of chemical products (excluding licensed chemical products). (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)