The registered address of Sihaiwei Air Compressor (Shanghai) Co., Ltd. is Room 378, Building 3, No. 585 Zhongmin Road, Maogang Town, Songjiang District, Shanghai. The registration authority is the Songjiang District Market Supervision Administration, and the legal representative is Wang Yun. The business scope includes general projects: manufacturing of gas compression machinery; Manufacturing of household appliances; Fan and fan manufacturing; Manufacturing of ordinary valves and plugs (excluding special equipment manufacturing); Manufacturing of general components; Manufacturing of metal daily necessities; Software sales; Sales of lubricating oil; Sales of gas compression machinery; Wholesale of hardware products; Retail of hardware products; Sales of instruments and meters; Sales of refrigeration and air conditioning equipment; Sales of hydraulic power machinery and components; Sales of fans and blowers; Sales of metal products; General equipment repair; Installation services for ordinary mechanical equipment; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Professional design services; Industrial design services; Import and export of goods; Technology import and export; Mechanical equipment leasing; Contract energy management. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law)