Production of Class II medical devices; production of Class III medical devices; operation of Class III medical devices; leasing of Class III medical devices; manufacture of special equipment; manufacture of road motor vehicles. General items: technology import and export; goods import and export; production of Class I medical devices; sales of Class I medical devices; sales of Class II medical devices; motor vehicle repair and maintenance; maintenance of electronic and mechanical equipment (excluding special equipment); software development; network and information security software development; basic artificial intelligence software development; manufacture of specialized equipment (excluding licensed specialized equipment); manufacture of industrial automatic control system devices; sales of industrial automatic control system devices; sales of electronic products; sales of office supplies; sales of rubber products; sales of metal materials; sales of instruments and meters; sales of packaging materials and products; retail of computer software, hardware, and auxiliary equipment; sales of automobiles; sales of automotive decoration supplies; leasing services (excluding licensed leasing services); operation of small and micro passenger car leasing services; technical services, technology development, technical consultation, technical exchange, technology transfer, and technology promotion (excluding car washing services).