... 16, 25, 38, 50,76mm plastic pall ring PP, PE, PVDF, PVC, RPVC, RPP plastic pall ring ... tower packing Plastic pall ring:PE pall ring, PP pall ring, RPP pall ring, PVC pall ring ... decarbonization plant, separation of ethylbenzene, seperation of isooctane/ methylbenzene.Material: PE, PP, RPP, PVC, CPVC, PVDF. Size: 5/8" ... 25, 38, 50,76mm plastic pall ring (Material: PE, PP, RPP, PVC, CPVC, PVDF, PTFE, HDPE)