Fireproof,low conductivity factor,waterproof,moisture-proof, thermal insurance,heat protection and sound absorbing materials. Mineral Fiber Ceiling BoardCommon Size:595*595mm,600*600mm,etc Thickness:6-20mm Edge: square,tegular edge Packing: in cartonsMineral Fiber Acoustic ceiling board has RH- 90% ,NRC-0.55,LR -90,we can produce the size and edge according to customers' need; Edge DetailMetric ...