metal raschig ring,raschig ring,304 raschig ring,316L raschig ring,metal raschig ring, 1)High quality, 2)competitive price. Metal Raschig RingSince 1914 when F.Raschig invented this type of ring for tower packing, random tower ... : carbon steel, stainless steel including 304, 304L, 410,316, 316L. Metal Raschig Ring Catalyst support materials