Njirimara nke mpịachi efere kwụ ọtọ CD 1. Maka ibuli na ibufe efere efere na ihe owuwu site na ọnọdụ niile (kwụ ọtọ, vetikal na n'akụkụ akụkụ)
2. Ogwe aka na -ebuli elu (ụdị CD)
3.Clamps nwere usoro nchekwa, na -ahụ na nwa ehi anaghị amị amị mgbe etinyere ike yana mgbe ọ dị na positon mepere emepe. A na -akpọchi ihe mgbachi ahụ mechiri emechi yana n'ọkwa mepere emepe.
4.Emepụtara ya site na nchara carbon dị elu.
5. Ịkwụsị ibu.
Njirimara nke mpịachi efere kwụ ọtọ CDH 1. Mwepụta ihe eji emepụta ọkọlọtọ maka ịwelite efere efere na akụkụ nchara. Usoro mkpọchi mkpọchi mkpọchi nke oge opupu ihe ubi na-emesi ike ike nke mbụ ike.
2. A na -ejikọ ihe nkedo nwere usoro nchekwa, na -ahụ na mgbachi ahụ anaghị amị amị mgbe etinyere ike yana mgbe eburu ibu.
3. A na -akpọchi mkpọchi akpọchi yana mepere emepe.
4. High frquency quenching nke die esorowo pụrụ iche alloy steels na -enye ukwuu anwụ ngwa ngwa ka cam.
