It is made of metal mesh with different mesh sizes that are stamped , then assembled in a certain order into the already processed edge wrapping ring and finally pressed. Its function is to filter the molten material flow and increase the resistance of the material flow, so as to filter out mechanical impurities and improve the effect of mixing or plasticizing. It has properties such as acid resistance, alkali resistance, temperature resistance, and wear resistance; it is mainly used in mining, petroleum, chemical, food, medicine, machinery manufacturing, Chemical fiber spinning and other industries.
