... Fiber, Cement, Quartz Sand Thickness: 6-22mm Normal Size: 1200mmx2400mmx6.8.9.10.12.15.18.20Density: about 1.30g/cm3 ... high impact strength and anti-sagging6.Heat insulation7.Hight accuracy 8.Fast installationSafety Capability ItemindexAsbestos Including100%Asbestos freeRasdioactive<1.0Ira<1.0Ir ...