... color twill and stain woven method woven-fiberglass filter bag cloth, reserve air dust collector bag Code: EWTF370-psiThickness(mm ... acid , acid , alkali.Non sopping, non dampingIntensity high, obstruction little, cleaning dust effectual, cleaning dust efficiency more ... acid , acid , alkali.Non sopping, non dampingIntensity high, obstruction little, cleaning dust effectual, cleaning dust efficiency ...