Liquid filter Strainer bags : 1:Materials: Polypropylene : PolyesterPhysical; 2:Ring Material: Plastic ring or steel rin HL Liquid filter Strainer bags for chemical 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; Applications:Paints, Inks, ...