... team 4) Strict quality control system1 - Good quality Polypropylene Needle Filter Felt made with advanced machinery 2 - Accordingly adjusted technical ... )Finishing:Heat setting, single side singeing, calendering (double sides finishing would be available upon request), PTFE membrane Roll length ... PE,Acrylic,pps,Nomex (M-Aramid),ptfe,fiberglass,p84 needle felt filter media. Also we can supply you high ...