Daily necessities daily necessities General items of furniture: Internet sales (except for sales of goods requiring permission); Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Research and development of household appliances; Research and development of Internet of Things technology; Sales of household appliances; Sales of metal cutting and welding equipment; Sales of smart home consumer devices; Sales of mobile terminal devices; Sales of digital video surveillance systems; Electronic product sales; Retail of computer software, hardware, and auxiliary equipment; Sales of office equipment and consumables; Domestic trade agency; Import and export of goods; Technology import and export.