Crude Gypsum is applied being a fluxing agent, fertilizer, filler in paper and textiles, and retarder in portland cement. About three-fourths of the overall production is calcined for use as plaster of paris and as creating components in plaster, Keene’s cement, board items, and tiles and blocks. Calcination: The rock https://www.propanraya.com/id/produk/eco-gypsum-ee-4050