1, Xiangheng Salt Chemical Co., Ltd. The oxide salt produced by this company is of good quality. A ferroferric oxide film with good corrosion resistance can be formed on the surface of the workpiece after nitrocarburizing in molten salt or subsequent nitrocarburizing oxidation in sulfur.
2. Xuetian Salt Industry Group Co., Ltd. is the first modern joint-stock company in the national salt industry that integrates production and marketing and combines across provinces. It mainly produces and sells salt and salt chemical products. The main products are salt, industrial salt, animal salt, mirabilite and caustic soda.