... , alkali chloride, coal gas and environmental protection industries. Plastic Random Packing include Pall ring, Intalox saddles, Super intalox ... , Cascade ring, Heilex ring, Conjugate ring, HQM flat ring, Teller Rosette, Hollow ball, Polyhedral ball, Cage ... and Covering ball,HQR ring,Characteristic Indexes of Plastic Heilex Ring NameNormalmmDiameter×Height×ThicknessmmSurface aream2/m3Void space% ...