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 pa chithandizo cha kutentha ndi 58-62 HRC, kuwonetsetsa kuti amatha kupirira katundu wambiri ndikugwiritsa ntchito nthawi yayitali.