Ezisetshenziswa ezimbonini, ukusetshenziswa kwamapayipi e-BA ahlanzekile, asezingeni eliphezulu kubalulekile ekuqinisekiseni ukusebenza okuphumelelayo nokuthembekile. Lawa mapayipi adlala indima ebalulekile ezimbonini ezahlukene ezifana nokudla neziphuzo, imithi, amakhemikhali nezimoto, lapho ikhwalithi nokuhlanzeka kwamapayipi...
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