Development, design, production and sales of smart home appliance software and hardware technology; retail of packaged food and health food; e-commerce system information consulting and technical services; software design, production and development; home appliance installation and maintenance; computer system integration; aquatic products, tea, pre-packaged products, condiments, agricultural and sideline products, stationery, toys, craft gifts (except gold and silver) , mechanical equipment, household appliances, electronic components, Wujijiaodian, electronic products, stationery, photographic equipment, computers, software and auxiliary equipment, cosmetics and sanitary products, sporting goods, department stores, textiles, clothing, daily necessities, fruits and vegetables, feed, flowers, seeds, decorative materials, communication equipment, watches and clocks, glasses, instruments, sanitary ware, ceramics Wholesale of products, smart cards, and livestock; commission agency (except auctions); photography, warehousing (except dangerous goods) services; financial and economic information consulting; design, production, agency, and release of domestic advertisements; cigarette retail; sales of alcohol, family planning supplies, and medical supplies; self-operated and agency import and export business of various commodities and technologies (but businesses that are restricted by the state or prohibited from import and export) (Excluding products and technologies); R&D, production, sales, leasing, installation, and maintenance of vending machines, commercial smart vending cabinets, commercial smart access cabinets, and commercial smart display cabinets; R&D, production, manufacturing, and sales of household appliances; R&D, production, manufacturing, and sales of refrigerators and freezers; professional testing, analysis, application, and technology development of big data; industrial design.