It is the object of the present invention to provide a vacuum circuit breaker having highly reliable electrodes which exhibit little deformation with the lapse of time, as well as a vacuum valve for use in the vacuum circuit breaker, {HEAD ~ an electric contact} for {TAIL ~ use} in the vacuum valve and a method for making the electric contact 
for
It is the object of the present invention to provide a vacuum circuit breaker having highly reliable electrodes which exhibit little deformation with the lapse of time , as well as a vacuum valve for use in the vacuum circuit breaker , { HEAD ~ an electric contact } for { TAIL ~ use } in the vacuum valve and a method for making the electric contact
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