Katswiri wogulitsa zinthu za graphite, graphite kwa EV, mafuta, ng'anjo ndi mafakitale ena aliwonse.

Kodi Graphite Pensulo Ndi Chiyani
(Kodi Graphite Pensulo Ndi Chiyani) Pensulo ya graphite ndi chida cholembera chachikhalidwe chopangidwa kuchokera ku graphite, zomwe ndizovuta, zinthu zolimba zomwe zakhala zikugwiritsidwa ntchito kwa zaka mazana ambiri ngati chida cholembera. (What Is…


























































































