... .Meda type:fiber glass,PTFE,PPS,P84,Nomex FNS compound Needle Punched Filter Bag FNS Compound Needle FeltBy adding the P84 multi ... )270Anti-acidExcellentAnti-alkaliExcellentAnti-abrasionExcellentThe stability of water solutionMedialFinishing treatmentPTFE treatment FNS compound Needle Punched Filter Bag