{HEAD ~ The extrusion die} 17 is used in {TAIL ~ conjunction} with an extrusion punch 18 having a spherically shaped protrusion 19 
is used in
{ HEAD ~ The extrusion die } 17 is used in { TAIL ~ conjunction } with an extrusion punch 18 having a spherically shaped protrusion 19
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH