metallic tower packing is made of carbon steel, stainless steel, and aluminum ... steel, and aluminum alloy2) Main types: pall ring, hypack, raschig rings, saddles, cascade mini rings3) Thin4) Heat resistant5) Big flow6 ... easy-decomposition, and easy-coking materials9) Widely used in the packing towers in petrochemical industry, fertilizer industry, andenvironmental protection industry10) Application ...