Non-Asbestos fiber cement board : 1 sizes:1220*2440 2 thickness ... : 1.04--1.08g/cm3 Non-Asbestos Fiber Cement Board:Raw materails:cement, calcium oxide, quartz sand, reinforced ffibeFeatures: ... aging proofingspecification:1 size: 1220×2440×4-40mm2 Fiber performance: Non-flammable Class A (GB/8624-- ... school builing, hospital, railway station, sport facility and so on. Non-Asbestos Fiber Cement Board