Pali ntchito zambiri za ufa wa graphite, ntchito zosiyanasiyana zamafakitale, mitundu ya ufa wa graphite womwe umagwiritsidwa ntchito popanga ndi wosiyana, womwe umagwiritsidwa ntchito popanga batri, ndi ufa wa graphite, graphite ufa wa carbon carbon woposa 99.9%, mphamvu yake yamagetsi ndi yabwino kwambiri. Graphite ufa ndi wapamwamba ...
Werengani zambiri