1) element zvemukati. Zvinyorwa zvealuminium ndeimwe yemisiyano yakakosha pakati peiyo chena, brown uye dema aluminium oxide aluminium oxide ine anopfuura 99% aluminium. Dema aluminium oxide ine makumi mana neshanu muzana aluminium. Brown aluminium oxide ine 75-94% aluminium. 2) kuomesa. White Aluminium oxide ...