R&D and technical consultation and services of biological products; Health management consultation (excluding diagnosis and treatment services); Enterprise marketing planning; Conference and exhibition services; Photography and videography services; Designing, producing and acting as an agent for domestic advertising business, and publishing domestic outdoor advertising business; Sales of food (to be operated with license), disinfection supplies (excluding highly toxic ones), packaging materials, jewelry and jade articles, arts and crafts (excluding antique calligraphy and paintings), stationery, furniture, sports goods (excluding crossbows), household appliances, building materials, mechanical equipment (excluding low-speed electric vehicles), medical devices (to be operated with license), hardware products, daily necessities, apparel, shoes and hats, knitwear and textiles, cosmetics, instruments and meters, as well as computers and their peripheral auxiliary equipment. (Projects subject to approval in accordance with law can only be carried out after being approved by the relevant competent departments. )