Russia ndiyomwe imalowetsa kunja kwa ma electrode a graphite.Kuchuluka kwa ma elekitirodi a graphite pachaka ndi pafupifupi matani 40,000, omwe oposa theka la zinthuzo zimachokera ku China, ndipo zina zimachokera ku India, France ndi Spain.Koma nthawi yomweyo, Russia ilinso ndi matani pafupifupi 20,000 a graphite ele ...
Werengani zambiri