Because the gypsum board has the advantages of light weight, fire prevention, sound insulation, heat preservation, heat insulation and good processability (planing, nailing and sawing), convenient construction, good disassembly performance and increased use area, etc. Widely used in various industrial buildings, civil buildings, especially in high-rise buildings can be used as interior wall materials and decoration materials. Such as: for cabinet structure in the non-load-bearing walls, interior Tiemian Ban, such as ceiling.