Business scope includes construction engineering, municipal engineering, water conservancy and hydropower engineering, electric power engineering, architectural decoration engineering, steel structure engineering, environmental protection engineering, fire protection engineering, highway engineering, bridge engineering, foundation and foundation engineering, urban road lighting engineering, electromechanical engineering, building curtain wall engineering, landscaping engineering, waterproof, anti-corrosion and thermal insulation engineering, building intelligent engineering Design and construction of formwork and scaffold works; Construction labor subcontracting; Sales of building materials; Sales and leasing of machinery and equipment