... insulation performance for the characteristic of the color steel sheet and polystyrene material.4. The waterproof system on the roof makes the house a ... size of M +160 (n = 3,4,5), the size of the length of 2 N M +160 (N = 2,3 ... in construction, railway, highway, water conservancy, oil, commerce, tourism and the military field offices, conference rooms, command posts, houses, warehouses, shops, and ...