Kudziisa chinangwa cheyakatenderera simbi yekudziya michina:

Round simbi yekudziisa midziyo yekudziisa yakanyatso tenderera simbi pre-forging kudziyisa nzira, simbi inotenderedza inotenderedza kudziyisa uye denderedzwa simbi inodzima uye kudziyisa kudziyisa. Idzi nzira nhatu dzakasiyana zvichienderana nechinangwa chekudziya kwesimbi, uye denderedzwa simbi yakatarwa, tembiricha yekudziya uye yekudziya maitiro zvakare akasiyana zvakanyanya. .