... be retained in the particles of impurities, the filtrate and impurities of different particles can select different filter materials ... and filter accuracy Bag.(2) the replacement of the bag easily ... the use of filter material on 1~31,3,5,10,15,20,25,40,50,65,75,80JL-500. ... 1001.000.65~20JL-2002.000.65~50 vacuum filter for plant and animal oil