Waterproof MgO Board 1. Fireproof 2. Non-tonxic,non-formaldehyde 3. Impact strength 5.6KJ/m2 4. Density: 0.9g/cm3-1.2g/c Hubei Qingyang Green Building Material Co.,Ltd Yi De MgO Board Factory Yi De MgO Decoration Board has many advantages such as fireproof, moisture-resistance, high strength and light,anti-deformation, non-toxic,heat insulation, sound insulation, anti-aging, mothproof, easy to ...