80--100 yuan. Desulfurized gypsum is mainly used for plastering mortar on the inner surface of building walls and ground leveling mortar. It can also be used in industrial molds and art models, chemical industry and agriculture, food processing and medical beauty. The cost of processing desulfurized gypsum into gypsum powder is 80-100 yuan. Produced based on desulfurized gypsum, plastering mortar on the inner surface of building walls and ground leveling mortar, these high-strength adhesive gypsum cement materials can completely replace cement. The production energy consumption of this high-strength cementitious material is only 60% of cement, and the carbon emissions are only 1/5 of cement production.