... spec Thickness: 25mm, 36mm, 48mm, 50mm Size: 915mm*2150mm MGO perlite boardMGO foam boardSpecifications: 1) Thickness: 25mm, 36mm, 48mm, 50mm2) Size ... , thermal insulation, soundproof and sound absorption, mould proofing, damp proof, waterproof, shockproof, color weatherproof2) Non-corrosive, alkali and acid resistance; non ...