General Projects: Environmental emergency management services, Atmospheric pollution prevention and control services, Air pollution control, Wastewater treatment and recycling, General mechanical equipment installation services, Professional design services, Purchasing agent services, Foreign contracting projects, Special equipment sales, Motor and control system research and development, Sales of Class II medical devices, Sales of industrial automatic control systems, Sales of special equipment for environmental protection, Manufacturing of special equipment for environmental protection, Environmental protection monitoring, Manufacturing of special instruments for environmental monitoring, Sales of air pollution monitoring and detection instruments, Specialty chemical product sales( No hazardous chemicals), Sales of daily chemical products, Engineering and technical research and experimental development, Residential water and electricity installation and maintenance services, Sales of electronic components and electromechanical components, General equipment repair, Electrical equipment repair, Hardware wholesale, Building materials sales, Sales of building decoration materials, Engineering and technical services( Planning Management、 Survey、 design、 Except supervision), Engineering Management Services, Landscaping project construction, Metal door and window construction, Disinfectant sales( No hazardous chemicals), Food detergent sales, Information consulting services( No licensing information consulting services), Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Information technology consulting services。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations) Licensed Projects: Construction project construction, Construction Engineering Design, Construction project supervision, Construction labor subcontracting, Installation, modification and repair of special equipment, Electrical installation services, Installation of civil air defense protection equipment, Residential interior decoration,Production of Class II medical devices, Class III medical device operation, Professional construction work。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business projects are subject to the approval documents or licenses of relevant departments.)