Light in weight, non-deformable, moisture proof, heat-preservation, thermal-insulation, flame-resistant, anti-aging, good processability (be nailed, sawed or stuck), containing no injurants like asbestos or formaldehyde, eco-friendly. Product Advantage: Parallel cost with asbestos tile, while 10 times stronger than asbestos tile and 5 times longer in life-span than asbestos tile.