Licensed Projects: Building intelligent system design, Construction project construction, Residential interior decoration, Construction project construction( Except for nuclear power plant construction and operation、 Civil airport construction), Construction Engineering Design, Construction project supervision, Cultural relics protection project construction, Construction labor subcontracting。( 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.) General Projects: Residential water and electricity installation and maintenance services, Metal product research and development, Metal product sales, Building materials sales, Manufacturing of new building materials( No hazardous chemicals), Architectural decoration、 Manufacturing of plumbing pipe parts and other metal products for construction, Sales of building decoration materials, Door and window manufacturing and processing, Hardware product manufacturing, Hardware wholesale, Interior wooden door and window installation service, Door and window sales, Metal door and window construction, Import and export of goods, Import and export agent,Labor Services( Excluding labor dispatch), Human Resources Services( Excluding employment agency activities、 Labor dispatch services), Housing rental, Non-residential real estate rentals, Metal structure manufacturing, Metal structure sales, Technology import and export, Foreign contracting projects, Digital content production services( Excluding publishing and distribution), Photography and video production services。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations)