This drawing is the decoration design drawing of the coffee shop on the third floor. The first floor is 8mX10m, the second floor is 48mX20m, and the third floor is 16mX10. The second floor contains piano playing arrangements. The drawings include the floor plan, elevation index, socket layout, air exhaust, sound, air conditioning layout, top layout, plane material quality, plane dimension, top material, top dimension, and 3