Ion exchangers are mainly used for the preparation of pure water and high-purity water, and have been widely used in many industrial fields such as medicine, chemical industry, electronics, coating, beverage gelatin and medium and high pressure boiler feed water. It is used for the pretreatment of boilers, thermal power stations, chemical industry, light industry, textile, medicine, biology, electronics, atomic energy and pure water treatment. It can also be used for hard water softening and deionized water preparation in industrial production. It can also be used in food and medicine. Decolorization and purification, recovery of precious metals and chemical raw materials, treatment of electroplating wastewater, removal of inorganic ions in gelatin solution, reduction of gelatin ash, etc. The ion exchange group can be customized and processed according to different users, different uses and output.