============================================ Products introduction: "Changcheng" brand mineral wool acoustic board adopts the slag wool as the main materials by adding appropriate additives and through the processes of shaping, drying, cutting, and finish machining as well as spraying. It is thermal insulation and damp-proof material, containing no asbestos or formaldehyde, environmental-friendly. ============================================= Incombustibility: "Changcheng" brand mineral wool acoustic board is your ideal choice used for roofing materials for its good incombustibility. Decoration performances: various patterns and colors, notch design in edges. Many specifications are optional for designers. Sound absorption: reduce the noises and improve the acoustics. Heat insulation: superior heat insulation functions. ============================================= Application scope: "Changcheng" brand mineral wool acoustic board is mainly used in the decoration work of hotels, theatres, ballrooms, office buildings, shopping center, station and airdrome, workshops, hospitals, families and other public buildings. Its superior sound absorption and good flame resistance can meet the requirements for fire-proof and noise control of various buildings.