Including housing construction engineering, foundation engineering; labor subcontracting (except for labor dispatch); formwork scaffolding engineering, municipal public engineering, electrical and mechanical installation engineering, steel structure engineering, fire-fighting facilities engineering, electronic and intelligent engineering, metal door and window engineering, environmental protection engineering , Waterproof, anti-corrosion and thermal insulation engineering, structural reinforcement engineering, landscaping engineering construction, decoration engineering, curtain wall engineering, lighting engineering, highway engineering, safety protection engineering design and construction; ancient building, antique building construction, repair and maintenance; graphic design and Production; sales of building materials and decoration materials and property management