... modifiers, formed by suppressing, mixing and drying. It has the characteristics of sound insulation, heat insulation, light-weight, high ... widely used in ceiling, walls, interior walls, plywood .Product Description:(1)Normal size: 2400x1200mm, 2440x1220mm, 3000x1200mm ,1830×1220, ... Ceiling and Accessories System for Wall Partition, about the detail you could check our other product: Light Steel Keel. ...