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