Machinery and equipment Hydraulic components General projects: Technical services, technology development, technology consulting, technology exchange, technology transfer, technology promotion; Sales of hydraulic power machinery and components; Sales of liquid tight components and systems; Sales of industrial automatic control system devices; Sales of valves and plugs; Sales of pumps and vacuum equipment; Sales of casting machinery; Sales of mechanical equipment; Maintenance of electronic and mechanical equipment (excluding special equipment); Equipment supervision services; General equipment repair; Specialized equipment repair; Sales of electrical equipment; Sales of painting equipment; Sales of terminal measuring equipment; Import and export of goods