Light weight, high strength, fire-proof, water-proof, moisture-proof, sound insulation, heat insulation, thermal insulation. 1 ... is made of natural plant fiber , coal ash, cement , magnesium oxide and so on. It is a ... new green building board material with fire-proofing, sound-proofing, water-proofing, environmental protection, ... to forge ahead and strive for excellence. Fire proof wall panel