Production of Class III medical devices; Operation of Class III medical devices; Production of Class II medical devices; Leasing of Class III medical devices. General items: Sales of Class II medical devices; Sales of Class I medical devices; Leasing of Class II medical devices; Leasing of Class I medical devices; Production of Class I medical devices; Software development; Engineering and technological research and experimental development; Manufacturing of specialized equipment (excluding licensed specialized equipment); Medical research and experimental development; Leasing of mechanical equipment; Leasing of office equipment services; Leasing of non-residential real estate; Leasing of computers and communication equipment; Manufacturing of electronic special materials; Sales of electronic special materials; Manufacturing of intelligent instrumentation; Sales of intelligent instrumentation; Manufacturing of industrial control computer systems; Sales of industrial control computer systems; Software sales; Sales of electronic products; Technical services, technology development, technical consultation, technology exchange, technology transfer, and technology promotion; Software outsourcing services; Instrument and meter repair; Conference and exhibition services; Enterprise management; Enterprise management consulting; Information consulting services (excluding licensed information consulting services); Road freight transportation of general goods with a total mass of 4.5 tons or less (excluding online freight and dangerous goods).