General project: Research and development of mechanical equipment; Industrial robot manufacturing; Sales of industrial robots; Sales of electrical and mechanical equipment; Installation and maintenance of industrial robots; Sales of instruments and meters; Repair of instruments and meters; Wholesale of hardware products; Sales of electronic components and electromechanical component equipment; General equipment repair; Special equipment repair; Sales of electronic products; Sales of artificial intelligence hardware; Sales of new energy driven equipment; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of metal tools; Sales of pneumatic and electric tools; Sales of office equipment; Sales of office equipment consumables; Sales of power electronic components; Engineering and technical research and experimental development; Sales of testing machines; Sales of photovoltaic equipment and components.