Ubwino wa mafuta owononga umakhudza kwambiri magwiridwe antchito a makina opangira jakisoni wamafuta, mafuta abwino amakhala ndi kukhazikika kwa okosijeni, kupatukana mwachangu, thovu labwino, kukhuthala kwakukulu, kukana dzimbiri, chifukwa chake wogwiritsa ntchito ayenera kusankha mafuta oyeretsera apadera. .Kusintha koyamba kwa mafuta ndi ...
Werengani zambiri