... 7538-1994 Pipe basket filter SY/T 0523-2008 Oil field water treatment filterYY-T 0142-1994 Disposable air ... (2). Food, textile, mining, electronics, casting industry total water supply filter system(3). Pulp and paper, metallurgy, machinery ... electric power, mining, smelting industry general circulating water filtration(5).The circulating water of cooling tower in Medicine, petrochemical refinery, ...