The center's business scope includes the design, production, sales and installation of steel structure products; metal materials processing; installation of electromechanical equipment, fire protection facilities engineering installation, information engineering software design and network development; engineering consulting services; steel products, mechanical equipment, electromechanical products, hardware and building materials, metal materials, wholesale, commission agent (except auctions), import and export business; warehousing services, Site facilities leasing, equipment leasing, property management services; parking lot management services. (Projects subject to approval by law, only after the approval of the relevant departments can carry out business activities) (the proportion of foreign capital is less than 25%) licensed projects: power generation business, transmission business, power supply (distribution) business (projects subject to approval by law, only after the approval of the relevant departments can carry out business activities, and the specific business projects shall prevail in the approval results) general projects: Internet of Things equipment manufacturing; Internet of Things application services; Internet of Things technology Services; Internet of Things equipment sales (in addition to projects subject to approval by law, with a business license to carry out business activities independently according to law) Nanjing Hong Kong General Industrial Equipment Company Limited external investment in 2 companies.