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