General Projects: Special equipment manufacturing( Excluding licensed professional equipment manufacturing), Special machinery manufacturing for building materials production, mold manufacturing, mold sales, Construction machinery sales, Concrete structural component manufacturing, Concrete structural component sales, Metal structure manufacturing, Metal structure sales, Machinery and equipment sales, Import and export of goods, Technology import and export, Sales of building decoration materials, New material technology promotion service, Mechanical and electrical equipment manufacturing, Building materials sales, Engineering Management 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。( 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.)