Gypsum
Gypsum is mainly used in China's cement industry as a set retarder for Portland cement (silicate cement). It will also be widely used in gypsum building materials in the future, including decorative wall panels, window frames, window sills, steps, and cornices. Moreover, gypsum can be applied in soil conditioners, fertilizers, pesticides, papermaking, paints, rubber, plastics, textiles, arts and crafts, as well as in products like chalk and medicine. The main gypsum mining areas in Zhaotong City include: the Lunta Tian Gypsum Mine, Dabaochang Gypsum Mine, Wujii Gypsum Mining Area, Huilongba Gypsum Mining Area, and Hekou Gypsum Mining Area. (Zhaotong)
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