The foam sandwich board has beautiful appearance, bright color and good overall effect. It integrates bearing, heat preservation and waterproof, and does not need second decoration. It is a kind of widely used, especially for the temporary facilities such as offices, warehouses, fences and so on, it also reflects the civilized construction of modern construction sites, especially in the quick installation and use, it has obvious advantages in the index of material turnover and reuse. It will be an indispensable new light building material to reduce the cost of temporary facilities. Scope of application: temporary fences, workshops, office walls, steel structure room wall maintenance, decorative building materials, Activity Room Office Building Fire Grade: B3(flame retardant: melting)