Hollow Ball Random Packings size:25-50mm material: PE,PP,RPP,PVC ect ISO9001:2000 low operation cost, light in weight ect. Plastic tower packings ... . Plastic Random Packing include Pall ring, Intalox saddles, Super intalox, Cascade ring, Heilex ring, Conjugate ring, HQM flat ring, Teller Rosetter ring, Hollow ball ...