Sikhetha umgangatho ophezulu we-42CrMo kunye ne-40CrNiMo izinto zentsimbi ye-alloy, sebenzisa i-CNC yokulungisa izixhobo ezizenzekelayo ukuqinisekisa ukuchaneka kwemveliso kunye neemfuno zenkangeleko, khetha ulwelo oluphuma kumazwe angaphandle kunye nobuchwepheshe obukhethekileyo bokulungisa ubushushu, kwaye siphucule kakhulu ubomi benkonzo kunye nokuzinza kweetshizi.