... 3. ISO9001:2000 approved 4. OEM accept ThreeO HTA1 Industrial Dust Filter Bag 1. Features:1. Appropriate filter materialAccording to the ... of PM, dust loading concentration, rate of filtration, purge mode, emission concentration and working system of bag filter, in general, pulse jet ... a cap on the top, hanging on the beam of dust catcher, bottom fixed reliablyAdjust the tension to the rating, re ...