The tolerances which can be routinely maintained in {TAIL ~ sand} casting normally do not require any machining when {HEAD ~ the teachings} of this invention are used 
The tolerances which can be routinely maintained in { TAIL ~ sand } casting normally do not require any machining when { HEAD ~ the teachings } of this invention are used
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH