Acid and alkalis resistant, and high temperature resistant, high density( 1micron), smooth surface , no burr 1 bag mouth diameter 180mm(7) 1020mm(40) length 440mm, 780mm ... poriness ≥80% working pressure ≤ 0.4Mpa range of filtrartion 1-1400 um2 Acid and alkalis resistant, and high temperature resistant, high density( 1micron), smooth surface , no burr, filter residue can be easy stripped 3 ...