Izici ezithinta ukuguga kwenjoloba kanye nenqubo yokuguga kwerabha: Izici eziphambili eziholela ekugugeni kwerabha yilezi: Indima ye-Ozone, Indima ye-Mealical, Indima Yokudla Kwezimo, Indima Yokukhanya Kwezimo, Ukukhanya Kwemibandela kungekudala Isimo sokuqhekeka sokukhuphuka, kanye nokukhathala ukukhathala .
