Aluminium, the third most abundant element in the earth's crust, has been regarded by some people as the metal of the 20th century. A metal symbolising another great leap forward in man's technological development._x000D_
From the stone age man advanced to the bronze age, the iron age and now the age of aluminium._x000D_
The 19th Century discovery of elec- tricity was quickly followed by the discovery of the Hall-Heroult process of smelting aluminium. It is this same basic process we use today.