201 Chitsulo Chosapanga Dzira
Kuchuluka kwa mkuwa: J4>J1>J3>J2>J5.
Kuchuluka kwa mpweya: J5>J2>J3>J1>J4.
Kukhazikika kwa kuuma: J5, J2>J3>J1>J4.
Ndondomeko ya mitengo kuyambira pamwamba mpaka pansi ndi iyi: J4>J1>J3>J2, J5.
J1（Mid Copper）: Kaboni wochuluka ndi wokwera pang'ono kuposa J4 ndipo mkuwa ndi wochepa kuposa J4. Kagwiridwe kake ka ntchito ndi kochepera J4. Ndi koyenera kugwiritsa ntchito zinthu wamba zosaya kwambiri komanso zojambula zozama, monga bolodi lokongoletsera, zinthu zaukhondo, sinki, chubu chazinthu, ndi zina zotero.
J2, J5:Machubu okongoletsera: Machubu osavuta okongoletsera akadali abwino, chifukwa kuuma kwake kuli kokwera (konse pamwamba pa 96°) ndipo kupukuta kwake kumakhala kokongola kwambiri, koma chubu cha sikweya kapena chubu chopindika (90°) chimaphulika mosavuta.
Ponena za mbale yathyathyathya: chifukwa cha kuuma kwake kwakukulu, pamwamba pa bolodi ndi kokongola, ndipo pamwamba pake pali mankhwala ochiritsira monga
Kupaka chisanu, kupukuta ndi kukulunga ndi kovomerezeka. Koma vuto lalikulu ndi vuto lopindika, kupindika n'kosavuta kuswa, ndipo mpata ndi wosavuta kuphulika. Kusatambasuka bwino.
J3 (Mkuwa Wochepa): Yoyenera machubu okongoletsera. Kukonza kosavuta kungachitike pa bolodi lokongoletsera, koma sizingatheke mosavuta. Pali ndemanga yoti mbale yometa yapindika, ndipo pali msoko wamkati pambuyo posweka (titaniyamu wakuda, mbale yamtundu, mbale yoyeretsera, yosweka, yopindika ndi msoko wamkati). Zipangizo zoyeretsera zayesedwa kupindika, madigiri 90, koma sizipitirira.
J4（Mkuwa Wapamwamba）: Ndiwo wokwera kwambiri pa mndandanda wa J. Ndi woyenera mitundu yaying'ono ya zinthu zojambula mozama. Zinthu zambiri zomwe zimafuna kutola mchere wozama ndi kuyesa kupopera mchere zimasankha. Mwachitsanzo, masinki, ziwiya zakukhitchini, zinthu za m'bafa, mabotolo amadzi, ma flask otsukira mpweya, ma hinges a zitseko, maunyolo, ndi zina zotero.
J1 J2 J3 J4 J6 Kapangidwe ka Mankhwala:
| Giredi | C | Mn | Si | P | S | Cr | Mo | Ni | Cu | N |
| J1 | 0.12 payokha | 9.0-11.0 | 0.80 pasadakhale | 0.050 pasadakhale | 0.008 payokha | 13.50 – 15.50 | 0.60 pasadakhale | 0.90 – 2.00 | Mphindi 0.70 | 0.10 – 0.20 |
| J2 | 0.20 payokha | Mphindi 9.0 | 0.80 pasadakhale | 0.060 pasadakhale | 0.030 pasadakhale | Mphindi 13.0 | 0.60 pasadakhale | Mphindi 0.80 | 0.50 pasadakhale | 0.20 payokha |
| J3 | 0.15 pasadakhale | 8.5-11.0 | 0.80 pasadakhale | 0.050 pasadakhale | 0.008 payokha | 13.50 – 15.00 | 0.60 pasadakhale | 0.90 – 2.00 | Mphindi 0.50 | 0.10 – 0.20 |
| J4 | 0.10 payokha | 9.0-11.0 | 0.80 pasadakhale | 0.050 pasadakhale | 0.008 payokha | 14.0 – 16.0 | 0.60 pasadakhale | 0.90 – 2.00 | Mphindi 1.40 | 0.10 – 0.20 |
| J6 | 0.15 pasadakhale | Mphindi 6.5 | 0.80 pasadakhale | 0.060 pasadakhale | 0.030 pasadakhale | Mphindi 13.50 | 0.60 pasadakhale | Mphindi 3.50 | Mphindi 0.70 | Mphindi 0.10 |
Nthawi yotumizira: Julayi-07-2020