{HEAD ~ The melting furnace} used in {TAIL ~ the process} of the invention includes those typical of use in making cast iron 
used in
{ HEAD ~ The melting furnace } used in { TAIL ~ the process } of the invention includes those typical of use in making cast iron
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH