1)Density:40-150kg/m3 2)Thickness:30-150mm 3)Size:1200*600mm each piece 4)Temperature:650C Rock wool board is the most economical insulation 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.