... adding fiber, bonding agents, modifiers, formed by suppressing, mixing and drying. It has thecharacteristics of sound insulation, heat insulation, light ... -aging, anti-moth eaten. It can use nails, sawing, planning, and other methods of construction. It is widely used in ceiling ... characteristics of our products,the gypsum mass are natural and great. Three times exzamination of our pruducts will be ...