Previously, desulfurization gypsum slag was often treated by landfill, which seriously polluted the environment and occupied farmland. After being treated by DSJ series gypsum powder machines, desulfurization gypsum slag can be made into gypsum powder for construction, turning waste into treasure. Moreover, the stone gypsum powder produced by DSJ series gypsum powder machines produced by Yifan Company has better performance than natural gypsum, making it a high-quality raw material for manufacturing gypsum boards.