The particle size of the oxidizable metal powder normally averages not more than 60 mesh, and the metal powder preferably contains {HEAD ~ not less than 50%} of {TAIL ~ particles} whose sizes are not greater than 100 mesh 
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The particle size of the oxidizable metal powder normally averages not more than 60 mesh , and the metal powder preferably contains { HEAD ~ not less than 50 % } of { TAIL ~ particles } whose sizes are not greater than 100 mesh
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH