... countries,high quality,good price,CE,UL,Interteck certificate The Magnesium Oxide Board takes magnesia material as its main material, uses alkali-resistant ... for ship decoration . Its Super Properties:1. Water-proof 2. Moisture resistance 3. Fire-Proof 4. Sound Insulation 5. High Strength, Impact ... Stable No Deformation 8. Easy Finishing 9. Environmental Protection, Nonpoisonous fire proof board