The microwave dryers for gypsum board are suitable for drying and heating curing gypsum products such as gypsum board, decorative gypsum board, gypsum hollow slat, fiber gypsum board, gypsum sound-absorbing board, phosphogypsum, positioning point gypsum board, etc. Gypsum is the calcium sulfate mineral in non-metallic sulfate, which is the oldest building material in the world