... polyvinyl chloride(CPVC)and polyvinylidene fluoride(PVDF).Plastic Conjugate Ring Random Packings have a strong resistance to ... intalox, Cascade ring, Heilex ring, Conjugate ring, HQM flat ring, Teller Rosetter ring, Hollow ball, Polyhedral ball, Cage ball ... and Covering ball,HQR ring.Characteristic Indexes of Plastic Conjugate Ring NameNormalmmDiameter ...