1)Zviri mukati me Element. Zviri mukati me aluminium ndeimwe yemisiyano yakakosha pakati pe aluminium oxide chena, brown ne black. Aluminum Oxide chena ine anopfuura 99% aluminum. Black Aluminum Oxide ine 45-75% aluminum. Brown Aluminum Oxide ine 75-94% aluminum. 2) Kuoma. White Aluminum Oxide...