1)Mineral Fiber Board size:600x600;600x1200 2)RH up to 95%,NRC ... partition.4. Gypsum board and Gypsum PVC board tile, Paper faced gypsum board5. Mineral Fiber ceiling board. PRANCE Mineral Fiber Acoustical CeilingsWhen you think ... , 1, 262, 4, 84 Bitmap CE En13162Raw materialsperlite, mineral fiber, organic fiber, additive(some chemical stuff )Measures610x610, 610x1220, 595x595, 595x1195Thickness12, 13 ...