Sales of daily wood products; sales of daily sundries; sales of toys; sales of leather products; sales of office equipment; sales of household appliances; sales of electrical accessories; sales of packaging materials and products; sales of plastic products; sales of daily chemical products; sales of special electronic materials; sales of gifts and flowers; sales of household items; Daily necessities sales; new material technology promotion services; electronic special materials research and development; biochemical product technology research and development; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; new material technology research and development; engineering and technology research and experimental development; natural science research and experiments Development; sales of plastic packaging containers and tools for food; sales of arts and crafts and ceremonial items (except ivory and its products); sales of electronic products; import and export of technology; import and export of goods; sales of metal packaging containers and materials; sales of office supplies; sales of graphite and carbon products; sales of special ceramic products sales; sales of sanitary ceramic products; sales of high-speed rail equipment and accessories; sales of synthetic fibers; sales of automobile decorative products; sales of synthetic materials; Internet sales (except for sales of goods that require a license); sales of outdoor products; sales of bags; sales of maternal and infant products; sales of daily necessities; sales of household appliances spare parts; Sales of furniture spare parts; sales of labor protection products; domestic trade agency; sales of chemical products (excluding licensed chemical products); sales of high-performance fibers and composite materials; sales of engineering plastics and synthetic resins; sales of high-quality synthetic rubber; sales of new membrane materials; sales of rubber products; new membrane materials Manufacturing; manufacturing of automobile decorative products; manufacturing of special electronic materials; manufacturing of motorcycle parts and accessories; manufacturing of plastic packaging boxes and containers; manufacturing of plastic products; manufacturing of rubber products; manufacturing of synthetic fibers; manufacturing of daily chemical products; manufacturing of special chemical products (excluding hazardous chemicals); manufacturing of synthetic materials (not Containing hazardous chemicals); production of chemical products (excluding licensed chemical products); manufacturing of basic chemical raw materials (excluding manufacturing of licensed chemicals such as hazardous chemicals); manufacturing of arts and crafts and ceremonial items (except ivory and its products); leasing of Class II medical equipment; sales of Class II medical devices; Class I medical device leasing; Class I medical device sales; Class I medical device production; import and export agency; production of plastic packaging containers and tool products for food; cosmetics production; Class III medical device leasing; Class III medical device operation; Class III medical device production; Class II medical device production;