... & steel, oil, cement manufacture, chemical plants, power plant, metallurgical Oil and water repellent Polyester needled felt (filter bags)The ... agent. It has the feature of water and oil repellency and long use life, and the micro pores of the filter bags ... cement manufacture, chemical plants, power plant, metallurgical plants, and foundry, etc.The technical data of Oil and water repellent PET needled ...