acoustic mineral fiber Ceiling Tiles: 1,NRC=0.55,RH=95% 2, fire resistance Class A 3,CE ISO,SGS quality 4,OEM available acoustic mineral fiber Ceiling Tiles is the most economical lay-in ceiling board used in the suspended ceiling system. This ceiling board have been designed to blend the characteristics of asbestos-free, fire resistance, thermal insulation, good sound absorption and excellent ...