Manufacturing of non-electric household appliances; sales of non-electric household appliances; production of gas appliances; wholesale of kitchenware, sanitary ware and daily sundries; manufacturing of household appliances; manufacturing of metal daily necessities; manufacturing of daily ceramic products; manufacturing of electrical equipment; manufacturing of transformers, rectifiers and inductors; manufacturing of capacitors and supporting equipment; manufacturing of power electronic components; manufacturing of furniture; manufacturing of motors; manufacturing of audio equipment; manufacturing of film and television recording and playback equipment; Manufacturing of communication equipment; retail of computer software, hardware and auxiliary equipment; manufacturing of computer software, hardware and peripheral equipment; wholesale of computer software, hardware and auxiliary equipment; manufacturing of semiconductor discrete devices; manufacturing of integrated circuits; manufacturing of electronic vacuum devices; manufacturing of electronic components; manufacturing of electronic components and electromechanical component equipment; manufacturing of plastic products; manufacturing of gas, liquid separation and purification equipment; manufacturing of plastic packaging boxes and containers; manufacturing of fans, Manufacturing of fans; sales of mechanical equipment; retail of daily household appliances; manufacturing of daily groceries; sales of household audio-visual equipment; sales of electronic products; sales of communication equipment; engineering and technology research and experimental development; professional design services; research and development of intelligent robots; industrial robot manufacturing; sales of intelligent robots; sales of industrial robots; sales of electric heating food processing equipment; manufacturing of household products; manufacturing of special equipment for business, catering, and services Manufacturing; manufacturing of smart home consumer equipment; manufacturing of glass thermal insulation containers; manufacturing of sanitary ware; sales of solar thermal utilization equipment; technology import and export; import and export of goods; manufacturing: electric fans, vacuum cleaners, heaters, electric mills, range hoods, air purifiers and other household appliances, automobile starter motors, vehicle motors and appliances, low-voltage appliances and other electromechanical products (if the state has special regulations, these regulations should be followed)*.