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

Mitundu itatu ya Graphite
(Mitundu itatu ya Graphite) Graphite is a kind of allotrope of carbon, which is gray black and opaque solid. It can be divided into artificial graphite and natural graphite. Besides, graphite is…


























































































