General Items: Fabrication of Metal Structures; Door and window manufacturing and processing; Metal cutting machine tool manufacturing; Landscaping engineering construction; Urban greening management; Municipal facilities management; Environmental consulting services; Project management services; Management of flood control facilities; Manufacturing of building decoration, plumbing pipe parts and other metal products for construction; Sales of building materials; Sales of lightweight building materials; Sales of metal products; Sales of metal chains and other metal products; Wholesale of hardware products; Retail of hardware products; Sales of paints (excluding hazardous chemicals); Loading, unloading and handling; Labor services (excluding labor dispatch); Import and export of goods; Technology import and export. (Except for projects subject to approval in accordance with the law, independently carry out business activities with a business license in accordance with the law) Licensed projects: Residential interior decoration; Construction project supervision; Construction of construction projects; Highway engineering supervision; Construction project quality inspection; Construction labor subcontracting. (For projects subject to approval in accordance with the law, business activities can only be carried out after approval by relevant departments, and specific business projects are subject to the approval documents or licenses of relevant departments)