According to the present invention there are provided {HEAD ~ a highly reliable electrode} of high strength which undergoes little change even with the lapse of time, and a method for making the same, as well as a vacuum valve using such electrode and {TAIL ~ a vacuum circuit breaker} using such vacuum valve 
According to the present invention there are provided { HEAD ~ a highly reliable electrode } of high strength which undergoes little change even with the lapse of time , and a method for making the same , as well as a vacuum valve using such electrode and { TAIL ~ a vacuum circuit breaker } using such vacuum valve
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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