Fire-resistant gypsum board:sound insulation, heat insulation, light-weight, high-strength, small shrinkage, long stability. Fire-resistant gypsum board:It uses gypsum as the main material, adding fiber, bonding agents, modifiers, formed by suppressing, mixing and drying. It has the characteristics of sound insulation, heat insulation, light-weight, high-strength, small shrinkage, and the ...