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