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Ibhodlela le-PE liqhathaniswa nebhodlela le-PET, yiliphi elingcono?
Ekuphileni kwansuku zonke, sivame ukubona imikhiqizo eminingi yamakhemikhali yansuku zonke izosebenzisa ukupakishwa kwepulasitiki. Ngokupakishwa kwamabhodlela epulasitiki, manje asinakho nje kuphela ukukhetha okuningi ngesitayela, kodwa futhi sinokuningi nokukhetha ...Funda kabanzi