Pụtara na ụkpụrụ nke ụgbọ mmiri graphite Pụtara nke ụgbọ mmiri graphite: Nri ụgbọ mmiri graphite bụ akpụ akpụ, nke nwere ọtụtụ oghere nwere ụzọ abụọ nwere ụdị W nke nwere ihu abụọ na-ebupụta elu yana nkwado nkwado ala, elu ala, njedebe elu. ihu, elu ime,...
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