Hmoov graphite yog ib hom graphite qhuav, zoo li cov pa roj carbon uas muaj nyob hauv nws lub cev. Nws muaj cov yam ntxwv tshwj xeeb xws li kev ua tau zoo ntawm cov cua sov thiab hluav taws xob, kev ua kom lubricity, kev tsis sib haum xeeb ntawm cov tshuaj lom neeg, thiab kev tiv taus kub.
