Manufacturing of industrial automatic control system devices; manufacturing of transformers, rectifiers, and inductors; manufacturing of servo control mechanisms; development of intelligent water systems; manufacturing of electronic components and electromechanical component equipment; manufacturing of electrical signal equipment devices; manufacturing of high-speed rail equipment and accessories; manufacturing of power electronic components; manufacturing of CNC machine tools; manufacturing of agricultural machinery; manufacturing of special equipment (excluding licensed special equipment); manufacturing of mechanical and electrical equipment; manufacturing of pneumatic power machinery and components; manufacturing of industrial robots; manufacturing of communication equipment; manufacturing of metal processing machinery; manufacturing of packaging special equipment; installation services for general mechanical equipment; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; research and development of mechanical equipment; software development; sales of agricultural machinery; sales of metal tools; sales of environmental protection special equipment; sales of mechanical equipment; sales of electrical equipment; sales of mechanical and electrical equipment; sales of instrumentation; sales of industrial automatic control system devices; sales of servo control mechanisms; sales of electronic components and electromechanical component equipment; sales of packaging special equipment; sales of high-speed rail equipment and accessories; sales of railway locomotive and rolling stock parts; sales of specialized machinery for agriculture, forestry, animal husbandry, sideline production, and fisheries.