Uwohlula njani uMgangatho wezibane ze-LED eziPhezulu zeBay?
Okokuqala, khetha ngokweemfuno zokwenyani. Xa ukhetha izibane zemizi-mveliso kunye nemigodi kumashishini afana namalahle, i-petroleum, kunye namashishini ekhemikhali, akuyimfuneko kuphela ukuqwalasela ukuba iimfuno zokukhanyisa zinokuhlangabezana neemfuno, kodwa kunye nezinto ezinjalo ...
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