Na mmepụta mmepụta ihe, enwere ike iji graphite gbasaa dị ka ọkụ ọkụ, na-arụ ọrụ nke mkpuchi ọkụ ọkụ ọkụ, ma mgbe ị na-agbakwụnye graphite, iji tinye graphite extensible, iji nweta mmetụta ọkụ ọkụ kachasị mma. Isi ihe kpatara ya bụ usoro mgbanwe nke graphite gbasaa ...
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