... Generally within 15 days after payment.3. Product DescriptionFGD Gypsum (CaSO4 . 2H2O) is a unique synthetic product ... power plants4. ApplicationUse FGD gypsum instead of natural gypsum as cement retarder or gypsum board.5. Company InformationShandong ... specialized in calcined petroleum coke, coke, anode scrapes, graphite powder, cryolite, alumina, deoxidizer, carburant, aluminum sheet, aluminum ...