... .easy to operate and maintain 3.good after-service guangzhou high quality PP/PE Filter liquid bags HL Filter Bag Materials:Polypropylene / PolyesterPhysical ... ;Micron Size:Polypropylene: 0.5, 1, 5, 10, 25, 50, 100 and ... 200 μm. Polyester: 0.5, 1, 5, 10, 25, 50, 100 and 200 μm. Ring Material:Plastic ring or steel ring ...