The general business items are: Internet of Things technical services; Technical services, technical development, technical consulting, technical exchanges, technology transfer, technology promotion; Internet sales (except for the sale of goods that require licensing); Import and export of goods; Import and export of technology; Domestic trade agency; Sales of Class I medical devices; Sales of Class II medical devices; Sales of machinery and equipment; Sales of office equipment; Sales of lamps and lanterns; Sales of plastic products; Mold Sales; Electronic Products Sales; Marketing Planning; Internet of Things Equipment Sales; Electronic Specialty Materials Sales; Household Appliances Sales; Hardware Products Retail; Communication Equipment Sales; Construction Materials Sales; Furniture Sales; Household Goods Sales; Household Appliances Retail; Outdoor Goods Sales; Shoes, Hats, and Caps Retail; Bags and Luggage Sales; Clothing and Apparel Retail; Automotive Decorative Goods Sales; Maternity and Infant Supplies Sales; General Merchandise Sales; Toys sales; Pet food and supplies retail; Graphic design and production; Professional design services; Food sales (only sales of prepackaged food). (In addition to projects subject to approval by law, with a business license to carry out business activities independently in accordance with the law), the licensed business items are: Class III medical device business. (Items subject to approval by law, can only carry out business activities after approval by the relevant departments, the specific business items are subject to the approval of documents or licenses by the relevant departments)