... chloride, coal gas and environmental protection industries.Plastic Random Packing include Pall ring, Intalox saddles, Super intalox, ... flat ring, Teller Rosetter ring, Hollow ball, Polyhedral ball, Cage ball and Covering ball,HQR ring.Characteristic Indexes of Plastic ... space%Bulk densitykg/m3No. elementsper/m3Packing factorm-1Polyhedral ballΦ2525×1.0460909665100631Φ3838×1.2325918328500355Φ5050×1. ...