ion exchanger is mainly used for the preparation of pure water and high purity water, and has been widely used in many fields such as medicine, chemical industry, electronics, painting, beverage gelatin and medium and high pressure boiler feed water. Used for boiler, thermal power station, chemical industry, light industry, textile, medicine, biology, electronics, atomic energy and pure water treatment, industrial production needs for hard water softening, deionized water preparation occasions, can also be used for food and drug decolorization and purification, precious metals, chemical raw materials recovery, electroplating wastewater treatment, removal of inorganic ions in gelatin liquid, reduce gelatin ash, etc. Can be customized according to different users, different uses and output processing ion switch group.