2. Petrochemical: separation and recovery of products and intermediate products in the process of oil refining and chemical production; the purification during the manufacturing of liquids, magnetic tapes, CDs and photographic films, and particle removal and filtration of oilfield injection water and natural gas.
3. Textile: Purification and uniform filtration of polyester melt in the drawing process, protection and filtration of air compressor, degreasing and water removal of compressed gas.
4. Electronics and pharmaceuticals: pre-treatment filtration of reverse osmosis water and deionized water, pre-treatment filtration of washing liquid and glucose.
5. Mechanical processing equipment: lubrication system and compressed air purification of papermaking machinery, mining machinery,
injection molding machines and large precision machinery; dust recovery and filtration of tobacco processing equipment and spraying equipment.
6. Railway internal combustion engines and generators: filtration of lubricating oil and engine oil.
7.Various hydraulic oil filters for automobile engines and engineering machinery, ships, and trucks.