Mtundu wolumikizira mwachangu: 1. Kukakamiza kwa Ntchito: 16mmna ~ 3.2mvu. Kutentha: -20 ~ + 230 ℃. 2. Wogwira Ntchito Yogwira Ntchito: Mafuta, mafuta olemera, mafuta am'madzi, ulusi wamafuta, mafinya amkati, solling, mtundu wa mbale. Zojambula zamtundu wosapanga dzimbiri: 1. Sungani nthawi ndi khama: Mukamalumikiza ndi kulumikiza masitepe a mafuta kudzera mu cholumikizira mwachangu, kuchitapo kanthu. 2. Kupulumutsa Mafuta: Mzere wa mafuta utasweka, valavu imodzi yomwe ili pa cholumikizira mwachangu ndi kutseka chingwe cha mafuta ndipo mafuta sadzatuluka, ndikupewa kutaya mafuta. 3. Chitetezo cha chilengedwe: Pamene cholumikizira mwachangu chidasweka komanso cholumikizidwa, mafuta sataya, kuteteza