rasching ring,metallic rasching ring,carbon steel rasching ring, ss304 rasching ring, 316L rasching ring, metal rasching ring, Metal Rasching RingSince 19 14 when F.Raschig invented this type of ring for tower packing, random ... stainless steel (AISI304) in the material thickness shown. Other material available: carbon steel, stainless steel including 304, 304L, 410,316, 316L. metal Rasching Ring ...