Accordingly, the present invention has as one feature the use of a powder filler of {HEAD ~ varying particle size} which minimizes porosity by ability to produce {TAIL ~ a denser packing} 
Accordingly , the present invention has as one feature the use of a powder filler of { HEAD ~ varying particle size } which minimizes porosity by ability to produce { TAIL ~ a denser packing }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL