... roof and wall panel, included both types:a. Heat-Insulating material( EPS, Glass wool, Rockwool, PU, etc.)they have different thickness ... ,100mm), density, color, type, etc.b. Single color corrugated steel sheet( Steel Material: Aluminum- Zinc sheet):They have different thickness( 0.3-0 ... , etc. you can buy them according to your exact requirement. steel construction exhibition hall