... /8", 1", 1.5", 2", 3", 4" Application: Use as tower packing Size customized Metal pall ring is an industry standard ... , carbon steel, aluminum, bronze, 304L, 316L, and other alloy.Technical data of metal pall ring: Diameter (Inch)Dimension d×h×δ (mm ... .9655012003704 "100×100×2.0350.955531200371 Metal pall ring for tower packing