Indlela yokususa amabala omphezulu wetyhubhu eqhekekileyo landela la manyathelo angezantsi: Inyathelo lokuqala kukucoca, kufuneka kuqala kususwe i-oyile yepetroleum eqhekekileyo, ukungcola, igrisi, kunye nezinye izinto. Inyathelo lesibini yiasidi ngokwemvelo, ngokuthetha ngokubanzi, kukho unyango lokuchola ezimbini, ikhemikhali...
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