MGO perlite board, MGO foam board fireproof door core spec Thickness: 25mm, 36mm, 48mm, 50mm Size: 915mm*2150mm MGO perlite boardMGO foam boardSpecifications: 1) Thickness: 25mm, 36mm, 48mm, 50mm2) Size: 915mm*2150mm,etc3) Special sizes available upon requestsColors: White. Features: 1) Light weight, fire retardant and self-extinguishing, thermal insulation, soundproof and sound absorption, mould ...