As the gypsum board with light, fire, sound insulation, heat preservation, heat insulation, strong sound processing (can be planed, can be nails, can be saw), construction convenient, removable performance, increase the usable area, etc., so is widely used in various industrial construction, civil construction, particularly in high-rise building can be used as interior wall materials and decorating materials. Such as: Shelves structure for the non-load-bearing walls, interior plywood, ceiling, etc.