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Granular Gypsum Gypsum is mineral that exists in nature in the form of stone layers and mostly open . Gypsum […]

Despite the similarity of the production path of mictonized gypsum with ordinary gypsum , the presence of a separator changes […]

Razi Semnan whitewashing plaster is one of the most popular and oldest product of the factory , which is used […]

Mold making gypsum is one of the types of gypsum produced in Razi gypsum factory in Semnan T for the […]