Technical services, technology development, technology consultation, technology exchange, technology transfer, technology promotion; computer system services; information system integration services; advertising release, design, agency, production; corporate image planning; graphic design; marketing planning; etiquette services; social Economic consulting services; conference and exhibition services; photography and printing services; real estate consulting; health consulting (excluding diagnosis and treatment services); ticket agency; sales of Class I medical devices, Class II medical devices, watches, plastic products, rubber products, and furniture , household appliances, knitted imitations, office supplies, safety equipment, electronic products, cameras and equipment, toys, clothing, shoes and hats, cosmetics, jewelry, stationery, sporting goods and equipment, automobiles and spare parts, edible agricultural products , fresh fruits, aquatic products, arts and crafts and collectibles (except ivory and its products), computer software and auxiliary equipment; tourism consulting services; import and export of goods; import and export of technology; radio and television program production and operation; retail of publications; food business (Sales of bulk food); alcohol business; health food business; Internet sales of food; Internet culture business; Internet information services; third-category medical device business. (Market entities independently select business projects and carry out business activities in accordance with the law; radio and television program production and operation, publication retail, food operation (sales of bulk food); alcohol operation; health food operation; Internet sales of food, Internet cultural operation, and Internet information services , Category III medical device operations, and projects that require approval according to law, business activities must be carried out in accordance with the approved content after approval by relevant departments; business activities that are prohibited or restricted by national and city industrial policies are not allowed.)