According to the present invention there are provided 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 {HEAD ~ a vacuum valve} using {TAIL ~ such electrode} and a vacuum circuit breaker using such vacuum valve 
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According to the present invention there are provided 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 { HEAD ~ a vacuum valve } using { TAIL ~ such electrode } and a vacuum circuit breaker using such vacuum valve
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