Usoro nnabata nkendi eze taraEnwere ike kee ya na nnabata, na-ezughị oke, spaheding na-eme mkpọtụ (cryryMallizing na-eme mkpọtụ dị ka ihe mejupụtara, ihe achọrọ na nzube nke nnabata.
(1) usoro nnabata zuru oke
Acpeclication wara:nchara carbon carbon, nke etiti carbon dị elu, ihe mkpuchi carbon dị ala, na-agbado akụkụ,ndi eze tara, akụkụ ya na usoro ọgwụgwọ ndị ọzọ.
② acoved b
A. Meziwanye ọka ọka cucer, nụchaa ọka, kpochapụ ihe owuwu nke ndị ndọrọ ndọrọ ọchịchị nke ndị ndọrọ n'agha na ihe owuwu;
B. Belata ike ma melite arụmọrụ;
C. Ewepu nrụgide nke ime;
D. Usoro ọgwụgwọ ikpeazụ maka akụkụ ndị na-abụghị ihe dị mkpa.

(2) usoro nnabata ezughi oke
Acpeclication wara:Usoro ọgwụgwọ nke hypoweeTectoid, carbon owuwu nchara, ngwa ọrụ carbon nke carbon steel, obere nchara nchara na hytoy nchara, a na-ekpo ọkụ, na-ekpo ọkụ, wdg.
②Pure nke na-ezughị ezu:Iji kpochapụ nchegbu dị n'ime ịgbaghara ịtụgharị, belata ike ma melite ike.

(3) Spaheding na-eme mkpọtụ
Acpeclication wara:
A. Nkwadebe na ọgwụgwọ ọkụ nke ịmịpụta na usoro ihe eji arụ ọrụ na akwara ndị ọzọ;
B. Ọrịa na-adị jụụ na-echefu ọgwụgwọ na-egbu egbu na obere carbon steel na obere carbon alloy.
②ehinhed nke spaheding:
A. N'ihi nandi eze taraNke ahụ kwesịrị ịkpụ, belata isi ike ma melite arụmọrụ;
B. Iji meziwanye plastity nke na-arịa ọrịa oyi na-enweghị igbutu;
C. Sparherical Carbical iji gbochie oke nke na-esote ya na ịkwadebe maka olili ikpeazụ;
D. Ewepụ nrụgide nke ime.
(4) Ihunanya Instalmal
A na-eme ka a na-eme ihe nkiri:Na-anwụ ígwè, steel alloy, akụkụ stamish.
Abamuru nke Ihunanya Esteriad:Ọ nwere ike belata usoro na-eme mkpọtụ ma belata ọnụahịa nrụpụta.