Licensed Projects: Residential interior decoration, Construction project construction, Construction labor subcontracting, Professional construction work, Construction Engineering Design, Construction project supervision, Building intelligent system design, Food sales( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business items are subject to the approval results.) General Projects: Building materials sales, Sales of building decoration materials, Sales of steel bars for construction, Sales of metal parts for construction, Lightweight building materials sales, Construction machinery sales, Disinfectant sales( No hazardous chemicals), Sales of needle textiles and raw materials,Chemical product sales( Does not contain permitted chemical products), Domestic trade agent, Landscaping project construction, Foreign contracting projects, Engineering and technical research and experimental development, Engineering Management Services, Industrial Engineering Design Services, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Professional cleaning、 Cleaning、 Disinfection services, Information consulting services( No licensing information consulting services), Food import and export, Import and export of goods, Technology import and export( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)