Model NO: XBD-3263
Kutumiza kwamphamvu kodalirika komanso kothandiza pogwiritsa ntchito maburashi a kaboni opangidwa ndi graphite.
Kuchepetsa kung'ambika chifukwa cha kulimba kwa maburashi a graphite komanso kukana kugundana.
Kuchepetsa chiopsezo choyaka ndi zina zamagetsi, kuwonetsetsa kuti ntchito ikuyenda bwino.