Fire proof, water proof, aging-proof, shock proof, crack proof, sound insulation, save 15%~30% construction cost. Magnesium oxide board is a new fireproof decorative material, has features of fireproof, waterproof, asbestos-free, easy to install, etc. It's widely used for partition walls, ceilings, backer boards, SIP panels, veneer, etc., is an ideal substitute for gypsum drywall and fiber cement ...