... ", 3", 4" Size customized Metal Pall Ring:Carbon Steel pall ring, CS pall ring, Carbon Steel pall ring, Stainless steel ... robust, lesser probability of breakage, suitable for deeper beds.Metal Pall Ring Application: Metal Pall Ring Packing is widely used in ... ExtractionMaterial: Stainless steel, carbon steel, aluminum, bronze, 304L, 316L, and other alloy.Technical data of metal pall ring: Diameter ( ...