GYPSUM, Iran Gypsum powder manufacturer, price,
Gypsum is a soft sulfate mineral composed of calcium sulfate Dihydrate, with the chemical formula CaSO4#183;2H2O. It is mined and is used as a produce Gypsum powder and as the main constituent in many forms of plaster, blackboard, and Drywall. in Iran, best Gypsum, It is produced in Semnan. because Semnan have best Gypsum mine.