... , Africa, etc.Fireproof board is made of fireproof material:magnesium oxide, magnesium chloride, fiberglass mesh, perlite, ... 3 Heat InsulationWellyoung Fireproof board has heat prevention material incorporated, it has great feature of heat prevention ... as an interlayer for building, movable partitions, sound-absorbing structures, sound insulation structures, heat insulation and preservation structures, ...