Mipope yachitsulo yowongokakufunika kogwiritsa ntchito mankhwala kuti agwirizane ndi kupanga, ndiko kuti, mafuta a galasi, omwe amapangidwa ndi graphite asanagwiritse ntchito mafuta a galasi, chifukwa panthawiyo kunalibe mankhwala otere pamsika.Choncho, graphite angagwiritsidwe ntchito ngati lubricant, koma kwa nthawi yaitali, aliyense adzapeza mavuto, mwachitsanzo, kutentha kutengerapo dzuwa la graphite ndi mkulu kwambiri, ndipo matenthedwe kutchinjiriza zotsatira ndi osauka kwambiri.Mwa njira iyi, kutentha kwa nkhungu kudzakhala kofulumira kwambiri panthawi ya ntchito, ndipo n'zosavuta kuchititsa kuvala kwa chitoliro chachitsulo chowongoka, kotero kuti mankhwalawa sangagwiritsidwe ntchito kwa nthawi yaitali.Choncho, opanga akhala akuyang'ana mankhwala omwe angalowe m'malo mwa graphite, ndiko kuti, mafuta opangira magalasi, koma chifukwa chiyani ayenera kugwiritsidwa ntchito?Ndi chifukwa chakuti pali ubwino wambiri wa ng'anjo za trolley.Choyamba, kutentha kwapang'onopang'ono kumakhala kocheperako, kotero kuti kumatha kugwira ntchito yoteteza kutentha komanso kutha kuwonjezera nthawi yogwiritsira ntchito zipangizo.