Tuubooyinka birta ah ee toosan waxay u baahan yihiin inay isticmaalaan badeecad si ay ugu habboonaato habka wax soo saarka, taas oo ah, saliidda galaaska, kaas oo lagu soo saaray graphite ka hor inta aan la isticmaalin saliidaha galaaska, sababtoo ah wakhtigaas ma jirin wax soo saarka ah ee suuqa. Sidaa darteed, graphite waxaa loo isticmaali karaa oo kaliya sidii saliid, laakiin ...
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