A Wooden Substitute in the ancient entire world: For example, when wood turned scarce because of deforestation on Bronze Age Crete, gypsum was used in constructing construction at places the place Wooden was Beforehand applied.[42] Calcination: The rock is heated in kilns at particular temperatures to get rid of its https://www.propanraya.com/id/produk/eco-gypsum-ee-4050