It is made of gypsum as the main material, adding fibers, adhesives, and modifiers, after mixing, pressing, and drying. It has the characteristics of fire prevention, sound insulation, heat insulation, light weight, high strength, low shrinkage rate, good stability, no aging, and insect-proof. It can be constructed by nailing, sawing, planing, sticking and other methods. It is widely used in suspended ceilings, partition walls, interior walls, and veneer panels. Gypsum board is divided into three types: ordinary gypsum board, fiber gypsum board, and gypsum decorative board. Inorganic fiberboard is divided into mineral wool decorative sound-absorbing panels, glass wool decorative sound-absorbing panels, cement asbestos sound-absorbing panels, etc. It has the characteristics of sound absorption, fire prevention, heat insulation, heat preservation, and convenient construction.