{HEAD ~ The shell mold} 1, wherein the shell mold further comprises an alumina stucco layer having {TAIL ~ an average particle size} greater than 50 microns 
{ HEAD ~ The shell mold } 1 , wherein the shell mold further comprises an alumina stucco layer having { TAIL ~ an average particle size } greater than 50 microns
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH