Carbon simbi bhegi mafirita, simbi isina tsvina mabhasikiti mukati, iyo yakachipa, inoshandiswa zvakanyanya mumaindasitiri emafuta, nezvimwe.
Iyo yepamusoro-yekupinda mhando yebhegi sefa inotora yakajairika yepamusoro-yekupinda uye yakaderera-inobuda kusefa nzira yebhegi sefa kuita kuti mvura isefa iyerera ichibva panzvimbo yakakwirira ichienda kunzvimbo yakaderera. Iyo sefa bhegi haina kukanganiswa nemhirizhonga, iyo inovandudza kusefa inoshanda uye hupenyu hwesevhisi yebhegi resefa. Iyo nzvimbo yekusefa inowanzo 0.5㎡.