... : PE, PP, RPP, PVC, CPVC, PVDF, PTFE, HDPE Size: 5/8", 1", 1.5", 2", 3" Use as tower packing Plastic pall ring:PE ... , uniform gas-liquid contact, small specific gravity, high mass transfer efficiency and so on, and the application temperature in media ranges from ... environmental protection, etc.Technical data of Plastic pall ring: Diameter (Inch)Dimension d×h×δ (mm)Specific surface area (m2/m3)Void ...