Raw Materials of Gypsum Board SHANGHAI SANME MINING
The gypsum powder production line is to calcinate natural dihydrate gypsum ore (raw gypsum) or industrial byproduct gypsum (desulfurized gypsum, phosphogypsum, etc.) at a certain temperature. It is ground to make the dihydrate gypsum dehydrated and decomposed. The product with hemihydrate gypsum as the main component is the building gypsum (commonly known as plaster of gypsum).