Large-grain industrial salt and Marine salt are mainly used as hot compress salt: because the salt is not easy to cool after heating, large-grain salt (coarse salt) is often used as hot compress salt, which can help the human body eliminate excess waste, promote metabolism, and has a good health care effect. Refined industrial salt can be used for washing industry, printing and dyeing industry. Sea crystal is mainly used to simulate the sea water environment, used in aquaculture. Soft-water salts are mainly used to soften water. Feed salt as a feed additive to keep livestock healthier