2. Precision and fine filtration of high temperature and ultra-high-temperature liquid material and products;

3. Filtration of liquid material and products before reaction and crystallization to improve product quality as well as yield of crystals;

4. Removal and filtration of powdered activated carbon in the liquid chemical materials, as well as the precision separation and security filtering after rough separation in the production of activated carbon decolorization.

5. Interception and recovery of catalysts in large-scale chemical reaction device; recovery and collection of catalyst and catalyst particles;

6. Liquid filtration in the rectisol process;

7.The protecting filtration of fixed reaction bed; protecting device of continuous reaction of fixed reaction bed;