Research and development of hardware products; Manufacturing of hardware products; Manufacturing of electronic components and electromechanical equipment; Manufacturing of industrial automatic control system devices; Manufacturing of metal processing machinery; Manufacturing of electronic specialized equipment; Manufacturing of electronic components; Manufacturing of electronic measuring instruments; Manufacturing of testing machines; Manufacturing of instruments and meters; Mechanical equipment research and development; Information technology consulting services; Mechanical equipment leasing; Maintenance of electronic and mechanical equipment (excluding special equipment); Integrated circuit chip design and services; Software development; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Software sales; Electronic product sales; Sales of mechanical parts and components; Sales of electronic components and electromechanical equipment; Sales of electronic specialized equipment; Retail of electronic components; Wholesale of electronic components; Sales of electronic measuring instruments; Sales of testing machines; Instrument and meter sales