Computer and office equipment maintenance; Repair of communication equipment; Repair of electrical equipment; Repair of household appliances; Repair of metal products; Repair of daily products; General equipment repair; Motor vehicle repair and maintenance; Domestic trade agency; Import and export agency; Import and export of goods; Technology import and export; Technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; Software development; Business management consulting; Information technology consulting services; Health consulting services (excluding diagnosis and treatment services); Advertising design, agency; Advertising production; Advertising; Household appliance installation services; Network technology services; Information system operation and maintenance services. (Except for projects subject to approval in accordance with the law, independently carry out business activities with a business license in accordance with the law)