The porosity set forth above will exhibit little or no change even if the surface of {HEAD ~ the base} is plated with nickel since the thickness of {TAIL ~ the nickel} is extremely small 
The porosity set forth above will exhibit little or no change even if the surface of { HEAD ~ the base } is plated with nickel since the thickness of { TAIL ~ the nickel } is extremely small
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH