Salvaged foundry sand is reclaimed by introducing salvaged sand into a vacuum kneading tank, adding water and {HEAD ~ binder} to {TAIL ~ the salvaged sand} and kneading the salvaged sand under vacuum 
to
Salvaged foundry sand is reclaimed by introducing salvaged sand into a vacuum kneading tank , adding water and { HEAD ~ binder } to { TAIL ~ the salvaged sand } and kneading the salvaged sand under vacuum
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH