... Density: 1.04--1.08g/cm3 Non-Asbestos Fiber Cement Board:Raw materails:cement, calcium oxide, quartz sand, reinforced ffibeFeatures: 1 fire retardancy2 water ... friendly5 Energy saving6 Easy in instation , with T-bar7 Asbestos free8 formaldehyde free Application:It was used widely in hotal, office builing ...