Kumenyekanisha ibikoresho byacu byiza kandi byujuje ubuziranenge byumuryango, bikozwe mubikoresho byiza bya zinc.Iyi ntoki nziza cyane yerekana ubwiza nubwiza, ikongeraho gukoraho ubwami kumuryango uwo ariwo wose.
Kumenyekanisha ibyokurya byacu byiza kandi byujuje ubuziranenge hamwe na Knob, bikozwe mubikoresho byiza bya zinc.Iyi ntoki nziza cyane yerekana ubwiza nubwiza, ikongeraho gukoraho ubwami kumuryango uwo ariwo wose.