... : 25mm, 36mm, 48mm, 50mm Size: 915mm*2150mm MGO perlite boardMGO foam boardSpecifications: 1) Thickness: 25mm, 36mm, 48mm, 50mm2) Size: 915mm*2150mm ... . Features: 1) Light weight, fire retardant and self-extinguishing, thermal insulation, soundproof and sound absorption, mould proofing, damp proof, waterproof, shockproof ...