Zomwe zimagwiritsidwa ntchito pamagiyawa ndi 20CrMnTi, chomwe ndi chitsulo chochepa cha carbon alloy. Nkhaniyi imadziwika chifukwa cha mphamvu zake zabwino komanso zolimba, zomwe zimapangitsa kuti zikhale zoyenera kugwira ntchito zolemetsa pamakina aulimi.
Pankhani ya chithandizo cha kutentha, carburization idagwiritsidwa ntchito. Njira imeneyi imaphatikizapo kulowetsa mpweya pamwamba pa magiya, zomwe zimapangitsa kuti zikhale zolimba. Kuuma kwa magiyawa pambuyo pochiza kutentha ndi 58-62 HRC, kuonetsetsa kuti amatha kupirira katundu wambiri komanso kugwiritsa ntchito nthawi yayitali..