Sales of Class I medical devices; leasing of Class I medical devices; repair of electrical equipment; sales of electrical equipment; research and development of intelligent robots; sales of intelligent robots; industrial design services; research and development of Internet of Things technology; manufacturing of communication equipment; 5G communication technology services; manufacturing of mobile communication equipment; sales of mobile communication equipment; repair of communication equipment; sales of communication equipment; rental of computers and communication equipment leasing; engineering and technical services (except planning and management, survey, design, and supervision); sales of electronic products; manufacturing of power electronic components; wholesale of electronic components; manufacturing of other electronic components; software development; sales of artificial intelligence hardware; development of artificial intelligence application software; technical consulting services for artificial intelligence public service platforms; manufacturing of intelligent basic manufacturing equipment; manufacturing of special equipment (excluding licenses) Professional equipment manufacturing); information technology consulting services; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; household appliance research and development; household appliance sales; daily household appliance retail; household appliance repair; industrial robot manufacturing; industrial robot installation and maintenance; information system integration services; information system operation and maintenance services; computer system services ; Data processing services; Information consulting services (excluding licensing information consulting services); Mechanical equipment leasing; Mechanical equipment research and development; Mechanical equipment sales; General mechanical equipment installation services; Electronic and mechanical equipment maintenance (excluding special equipment); Conference and exhibition services; Certification consulting; Educational consulting services (excluding education and training activities involving licensing approval); Import and export commodity inspection and appraisal. Production of Class I medical devices; sales of Class II medical devices; leasing of Class II medical devices; import and export of technology; import and export of goods; production of Class II medical devices; leasing of Class III medical devices; operation of Class III medical devices; production of Class III medical devices; medical services; inspection and testing services; certification services; electronic certification services; e-government electronic certification services.