... board is from 250kg/M3 to 400kg/M3 NBY series ceramice fiber board is made from full BY ceramic fiber in a ... and hot strengthLow heat storageThermal shock resistanceExcellent themal stabityTypical applications:1,Industrial furnace wall lining, masonry insulation 2,The high temperature ... fire safety, noise, insulationDensity:250,280,300,320 ,350,400KG/M3 Size:Length*Width(mm*mm):1200*1000, 1000*600,900 ...