Manufacturing of special equipment; printing of documents, materials and other printed matter. General items: sales of special equipment; sales of food (only sales of prepackaged food); Internet sales (except for the sale of goods requiring licenses); sales of outdoor supplies; sales of office supplies; sales of arts and crafts and ceremonial supplies (except ivory and its products); wholesale of sporting goods and equipment; sales of labor protection supplies; sales of daily necessities; sales of daily necessities; sales of office equipment and consumables; sales of office equipment; sales of copying and offset printing equipment; sales of special equipment for environmental protection; refrigeration and air-conditioning equipment Sales; security equipment sales; mechanical equipment sales; audio equipment sales; wholesale of kitchenware, sanitary ware and daily necessities; sales of power electronic components; sales of power facilities and equipment; sales of wires and cables; sales of household appliances; sales of communication equipment; sales of lighting equipment; sales of cameras and equipment; sales of household audio-visual equipment; sales of fire-fighting equipment; sales of furniture; sales of paper products; wholesale of hardware products; sales of instruments and meters; sales of knitted textiles; wholesale of computer software, hardware and auxiliary equipment; building decoration Sales of materials; sales of metal structures; sales of chemical products (excluding licensed chemical products); wholesale of refined oil (excluding hazardous chemicals); wholesale of automobile parts and accessories; wholesale of motorcycles and spare parts; sales of electronic products; sales of knitted textiles and raw materials; sales of mechanical and electrical equipment; wholesale of clothing and apparel; sales of non-electric household appliances; sales of rubber products; sales of experimental analysis instruments; sales of teaching models and teaching aids; sales of sanitary ware; sales of special instruments for teaching; sales of network equipment; forestry Product sales; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; landscaping project construction; planning and design management; urban greening management; professional cleaning, cleaning, disinfection services; socioeconomic consulting services; information system integration services; software development; graphic design and production; advertising production; advertising release; advertising design, agency; computer and office equipment maintenance; office equipment rental services; network technology services; labor services (excluding labor dispatch).