Radiation Shielding: Gypsum Is currently being explored for use in shielding against radiation in health-related and industrial programs. Impurities in refinery gypsum waste have, in several conditions, prevented them from being used as usual gypsum in fields for instance construction. Therefore, waste gypsum is saved in stacks indefinitely, with significant https://www.propanraya.com/id/produk/eco-gypsum-ee-4050