... sandwich panel used in large industrial plants, warehouses, supermarkets, hospitals, stadiums, cold storage, activities room, buildings plus layer, clean workshop and heat insulation ... prevention, can satisfy the fire code requirements.4)fireproof, every ten years spraying coatings, plank life expectancy ... is up to youdensityEPS8-30/m3 rockwool 80-120kg/m3Material of top/back board eps sandwich panel