Ezihlotsheni zezimboni, ukusetshenziswa kwekhwalithi ephezulu, i-bahlazo ye-BA kubalulekile ekuqinisekiseni ukusebenza okusebenzayo nokuthembekile. Lawa mapayipi adlala indima ebalulekile emikhakheni ehlukahlukene efana nokudla neziphuzo, amakhemikhali, amakhemikhali kanye nezimoto, lapho kuhlanzeka kwamapayipi ...
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