What is the material in the building where the drawings reflected in the drawings?
In the plan, the blocks and the walls of the shear wall are not the same. In the section and the big sample, you can see the difference between the different materials, the concrete, the reinforced concrete is generally the difference between the two. , Awning, some processes, the practice of different, can see it
The drawings in the installation works are generally illustrated in the drawings, and it will clearly show where the lines used are the pipes of the pipes, the material of the pipes you can find in the general description of the material
Look in building details and design instructions.In the elevation map or wall map, you can have comments.