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. Electronic and pharmaceutical, high response and high precision control. Thermal power and nuclear power. Various lifting and handling operations. Metallurgy and 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. Automatic manipulation and control of multiple working program combinations. Special workplace. Various hydraulic oil filters for petrochemicals, railway internal combustion engines and generators, automobile engines and engineering machinery, ships, and trucks.