Licensed Projects: Construction project construction, Electrical installation services, Construction project construction( Except for nuclear power plant construction and operation、 Civil airport construction), Construction project construction, Construction project construction( Except for nuclear power plant construction and operation、 Civil airport construction), Residential interior decoration, Professional construction work, 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: Foreign contracting projects, General mechanical equipment installation services, Interior wooden door and window installation service,Earthwork construction, Foreign contracting projects, Metal door and window construction, Home appliance installation services, Home appliance sales, Sales of new ceramic materials, Metal material sales, Building materials sales, Machinery and equipment sales, Electrical equipment sales, Import and export of goods, Technology import and export, furniture sales, Door and window sales。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations)