Profile: Metallo Gasket Company deals with gaskets, shims, diaphragms, washers and tower packing. We also produce corrugated gaskets, heavy cross section rings and tower packing shims, solid metal and spiral-wound gaskets. Our metallic Raschig rings give outstanding performance for oil, gas and chemical process tower packings. Solid compression limiting rings are designed to prevent damage from careless insertion or over-bolting.