... produce replacement oil filters products with good qualtiy of many foreign famous companies, such as PAll,HYDAC and MAN Oil filter ... 1. ApplicationThe filter has been widely used in transfomer oil, turbine oil, hydraulic oil, aviation kerosene, petrolum, chemical, power plant, coal ... such as air filter, water filter, oil filter, carbon filter, acid filter, oil purifier, filter bag, bag filter, filter ...