Features: 1 Fire Performance:meets GB8624-1997B1 Standards 2 Asbestos Free 3 Formaldehyde Free 4 Product Content:Mineral fiber 5 Color of Surface:White 6 Noise Reduction Coefficient:Nrc0.4-0.6 Depending on the Pattern and Thickness 7 Light Refletivity:More than 85% Quality Certificate:ISO9001:2000,ISO14001:2002,CE Certificate Specification: Standard Thickness:6-20mm Stand Dimensions:300*600,600*600,300*1200,600*1200,600*1800mm