Fertilizer: From The late 18th and early nineteenth hundreds of years, Nova Scotia gypsum, normally referred to as plaster, was a extremely sought fertilizer for wheat fields in the United States. Impurities in refinery gypsum waste have, in many conditions, prevented them from getting used as ordinary gypsum in fields https://www.propanraya.com/id/produk/eco-gypsum-ee-4050