... CPVC, PVDF, PTFE, HDPE Size: 5/8", 1", 1.5", 2", 3" Use as tower packing Plastic pall ring ... coal gas industry and environmental protection, etc.Technical data of Plastic pall ring: Diameter (Inch)Dimension d ... volume(m3/m3)Dry packing factor ( m-1 )Heaping number (n/m3)Heaping weight (kg ... 1.41150.8922015800712 "50×50×1.5930.901276500563 "76×76×2.6730.9294193060 Plastic pall ring (Dia.5/8", 1", 1.5", 2 ...