... tower packings are made from polyethylene(PE),polypropylene(PP),reinforced polypropylene(RPP),polyvinyl chloride (PVC),chlorinated ... polyvinyl chloride(CPVC)and polyvinylidene fluoride(PVDF).PP Heilex Ring has a strong resistance to chemical corrosion, ... Packing include Pall ring, Intalox saddles, Super intalox, Cascade ring, Heilex ring, Conjugate ring, HQM flat ring, Teller Rosette, Hollow ball, ...