... " PP/PE needle Felt Filter Bags1).Nominal micron filter bags (#1,#2,#3, ) 2).Absolute micron filter bags.(#1,#2,#3, ... ) 3).Long time filter bags.(#1,#2,#3, ... ) 8).Pleated Media filter bags.(#1,#2,#3, )Micron Rated Liquid Filter BagsModel: A-B-C-D- ... (Steel Ring 316)FLS (Fasten Line Strip )D: Micron RatingPO & PE: 0.5-200 μm NMO: 25 ...