... good air permeability,smooth surface,stability,easy dedusting. polyester dust collector filter bag is high filtration rate,little energy comsumption ... life,etc and it is widely used in industrial dust collection,smoke prevention. contentindexweight:g/m2500thickness;mm1.8air ... resistanceexcellenthydrolytic stabilitygoodfinish treatmentshell mold processing surface polyester dust collector filter bag