The business scope includes general projects: manufacturing of industrial automatic control system devices; Sales of industrial automatic control system devices; Manufacturing of intelligent instruments and meters; Manufacturing of instruments and meters; Import and export of goods; Intelligent control system integration; Sales of mechanical equipment; Sales of instruments and meters; Sales of electrical equipment; Sales of intelligent instruments and meters; Sales of refrigeration and air conditioning equipment; Sales of mechanical and electrical equipment; Wholesale of hardware products; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion (except for projects that require approval according to law, business activities can be carried out independently with a business license in accordance with the law)