This invention relates to a plate thickness detection method and a plate thickness detection apparatus for {HEAD ~ a press} which presses {TAIL ~ a workpiece} by the cooperation of a punch and a die 
presses
This invention relates to a plate thickness detection method and a plate thickness detection apparatus for { HEAD ~ a press } which presses { TAIL ~ a workpiece } by the cooperation of a punch and a die
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH