The pressing operation joins {HEAD ~ the probe shaft} to {TAIL ~ the specimen assembly form} by plastic flow of the coupon material between the former rod and the anvil of the press  
to
The pressing operation joins { HEAD ~ the probe shaft } to { TAIL ~ the specimen assembly form } by plastic flow of the coupon material between the former rod and the anvil of the press
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH