Manufacturing of electronic components and components; manufacturing of integrated circuits; manufacturing of integrated cabinets; production of smart machine systems; sales of smart machine systems; sales of smart machines; technical services of smart machine systems; manufacturing of special equipment for food, wine, beverages and tea production; manufacturing of parts for electrical accessories, power distribution or control equipment; wholesale of household appliances; rental services of furniture and household appliances; retail of daily household appliances; wholesale of kitchen equipment and kitchen supplies; sales of electrical machinery equipment; manufacturing of refrigeration and air-conditioning equipment; manufacturing of water treatment equipment Research and development; Mechanical equipment leasing; Research and development of electronic, communication and automatic control technology; Mechanical technology development services; Pure water cooling technology development services; Mechanical engineering design services; Electronic engineering design services; Electronic product design services; Integrated circuit design; Trade agency; Wholesale trade of goods (except for licensed goods); Internet commodity sales (except for licensed goods); Sales of general machinery and equipment; Sales of special equipment; Import and export of goods (except specialized and controlled goods); Technology import and export;