Manufacturing of pumps and vacuum equipment; sales of pumps and vacuum equipment; manufacturing of water turbines and auxiliary equipment; manufacturing of electric motors; manufacturing of generators and generator sets; sales of generators and generator sets; research and development of electric motors and their control systems; manufacturing of electric motors; installation services for general mechanical equipment; sales of mechanical equipment; research and development of mechanical equipment; repair and maintenance of motor vehicles; manufacturing of general equipment (excluding special equipment); manufacturing of environmental protection special equipment; sales of environmental protection special equipment; manufacturing of special equipment (excluding licensed special equipment); manufacturing of agricultural machinery; sales of agricultural machinery; manufacturing of specialized machinery for agriculture, forestry, animal husbandry, sideline production, and fishery; installation and maintenance of specialized machinery for agriculture, forestry, animal husbandry, sideline production, and fishery; sales of specialized machinery for agriculture, forestry, animal husbandry, sideline production, and fishery; sales of gas, liquid, and separation and purification equipment; irrigation services; sales of valves and cocks; operation of wires and cables; retail of hardware products; wholesale of hardware products; wholesale of electronic components; retail of electronic components; software development; sales of software; sales of special equipment; repair of general equipment; repair of special equipment; repair of electrical equipment; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; manufacturing of IoT equipment; sales of IoT equipment; import and export of goods; import and export of technology; manufacturing of power distribution switchgear equipment; sales of power distribution switchgear equipment; manufacturing of industrial automatic control system devices; sales of industrial automatic control system devices; sales of automobiles; industrial engineering design services; system operation and maintenance services. Licensed projects: manufacturing of road motor vehicles; manufacturing of special equipment; construction engineering construction; electrical installation services.