Chii chinogona kusefa ma RO membranes?
Kamudzira keRO kane kunyatsosefa kwakanyatsojeka, kachibvisa zvinobudirira: maion esimbi ine simba: akadai se lead, mercury, cadmium, chromium, nezvimwewo, izvo zvine njodzi huru kuhutano hwevanhu.
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