R&D, production, sales and technical consulting of air conditioners, air-conditioning heat exchangers, low-temperature air source heat pump (cold) hot water units, central air-conditioning and other refrigeration equipment and components, heat exchangers, refrigeration and air-conditioning components, artificial environment and high-efficiency energy-saving thermal equipment, ventilation equipment and devices, space environment and air treatment equipment, heating and temperature regulation equipment, purification and filtration equipment, humidification and dehumidification equipment; air conditioning Deployment of R&D, production and sales of supporting electrical control boards, home appliance supporting control boards, frequency converters, electronic components, electronic products, computer software and hardware, electronic intelligent controllers, intelligent control chips, intelligent components, electric adjustment equipment, electric induction equipment; design, R&D, production and sales of smart home appliances, smart furniture, smart homes, digital electronics, cultural supplies, sporting goods and handicrafts; self-operated Recycling of electronics, electrical appliances and home appliances; sales of electronic and electrical products, electromechanical equipment, home appliances and their parts, raw and auxiliary materials, and metal materials; technology development, technology transfer, and technical consulting services for household electrical products, raw materials, and parts; computer system maintenance services; software development; product design, model design, computer animation design, packaging and decoration design; electronic information and information processing technology; large numbers Data operation; application of cloud computing technology; Internet and Internet of Things development and application; system integration; online sales of self-produced products; corporate management consulting; business information consulting (except finance, insurance, securities, and futures businesses); corporate image planning; conference and exhibition services; large-scale event organization and planning services; import and export of goods or technology (except for goods and technology import and export prohibited by the state or involving administrative approval).