... CPVC,PVDF 4)ISO9001:2000 Plastic Hollow Ball Random PackingsPlastic tower packings are made ... Packing include Pall ring, Intalox saddles, Super 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 hollow ballNameNormalmmDiameter× ...