The full set of drawings of the three storey office building with steel structure (building structure, water, electricity and heating), the walls, brick and concrete structures from the first floor to the fourth floor are paved with floor bearing plates, and then cast-in-place concrete. The construction drawing design of the project includes: building, structure, water supply and drainage, HVAC, electrical and other professional supporting contents. The drawings include the following contents: general description of construction drawing design, first floor plan, elevation, section, roof plan