General projects: Technical service, technology development, technology consultation, technology exchange, technology transfer, technology promotion; Sales of Category I medical devices; The second category of medical device sales; Machinery and equipment sales; Electrical equipment sales; Instrument sales; Sales of electronic products; Rubber products sales; Sales of chemical products (excluding licensed chemical products); Cosmetics retail; Cosmetics wholesale; General merchandise sales; Leasing services (excluding licensed leasing services); Category I medical device leasing; The second type of medical equipment leasing; Import and export of goods; Technology import and export; Sales agent; Trade brokerage (except for items subject to approval according to law, independently carry out business activities according to law with business license)