Cement plant filter elements are mainly used for grate cooler hydraulic station, raw material grinding lubrication station, brake hydraulic station, staker hydraulic station, Kiln retaining wheel hydraulic station, three-way valve hydraulic station, coal mill hydraulic station, also can be used for rolling mill, continuous casting machine hydraulic system filtration and various kinds of lubrication equipment filtration, oil refining, chemical products and intermediate products in the process of production of separation and recovery, oil field injection well water and natural gas particle removal filtration, polyester melt purification and uniform filtration in the process of wire drawing, air compressor protection filtration, compressed gas oil and water removal, reverse osmosis water, deionized water treatment and filtration, cleaning liquid and glucose pre-treatment and filtration, gas turbine, boiler lubrication system, speed control system, bypass control system oil purification, water pump, fan and dust removal system purification, lubricating oil and oil filtration.