Manufacturing of other electronic devices; Retail of hardware products; Wholesale of hardware products; R&D of hardware products; Sales of rubber products; Manufacturing of plastic products; Sales of plastic products; Engineering and technology research and experimental development; Technical services, technical development, technical consulting, technical exchange, technology transfer, technology promotion; Science and technology promotion and application services; Data processing services; Offline data processing services; Information system integration services; Information technology consulting services; Information consulting services (excluding licensed information consulting services); Internet of Things technology services; Technology promotion services; Digital technology services; R&D of Internet of Things technology; Conference and exhibition services; Professional design services; Software development; Wholesale of computer software and hardware and auxiliary equipment; Retail of computer software and hardware and auxiliary equipment; Development of digital cultural and creative software; Manufacturing of electric mechanical special equipment; Manufacturing of special equipment (excluding licensed special equipment manufacturing); Repair of special equipment; Integrated circuit design; Sales of integrated circuits; Manufacturing of integrated circuits; Sales of electronic products; Advertising publication; Advertising design and agency; Advertising production; Graphic design; Packaging services; Industrial design services; Sales of furniture; Production of furniture accessories; Installation and repair services for furniture; Sales of furniture accessories; Manufacturing of plastic packaging boxes and containers; Manufacturing of engineering plastics and synthetic resins; Manufacturing of daily miscellaneous goods; R&D of intelligent robots; Sales of intelligent robots; Mold manufacturing; Mold sales; Sales of lamps; Sales of lighting fixtures; Wholesale of daily necessities; Sales of electrical equipment; Sales of instruments and meters; Sales of smart instruments and meters; Wholesale of auto parts; Retail of auto parts; Sales of electronic special equipment; Wholesale of electronic components; Sales of office equipment consumables; Sales of office equipment; Maintenance of computers and office equipment; Sales of machinery and equipment; Sales of metal materials; Sales of non-ferrous metal alloys; Sales of daily necessities; Sales of lightweight building materials; Sales of building materials; Sales of arts and crafts and ceremonial supplies (excluding ivory and its products); Sales of leather products; Sales of chemical products (excluding licensed chemical products); Retail of edible agricultural products; Wholesale of edible agricultural products. (Except for projects that are subject to approval according to law, business activities are carried out independently with a business license. )