1)Density:40-150kg/m3 2)Thickness:30-100mm 3)1200*600MM 4)Inflamable Grade A Rockwool board is the most economical insulating material. It is mainly applicable to insulation ,sound absorption and fireproof of power plant, oil deport,metallurgical and chemical industry equipment, such as: boiler, oil tank, heat exchanger, reaction tower, dust remover, dryer, oven, big pipes.