A die-cast product is one which was produced by the injection of molten metal into steel molds under high pressure. The process is practically identical in concept to plastic injection molding, but uses molten metal. Many non-ferrous metals can be die-cast. The process is quick and precise, and is used to produce a wide variety of parts in many sizes. Some toys, including certain Transformers toys, are made partly or wholly from die-cast parts. ...did I mention it's a lost art?