Copper, Cement & Glass
Copper: Copper is one of the few metals that can occur in nature in a directly usable metallic form. This led to very
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Aluminium
The discovery of aluminium was announced in 1825 by Danish physicist Hans Christian Ørsted. The first industrial production of aluminium was initiated by
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Iron and Steel
Steelmaking has existed for millennia, but it was not commercialized on a massive scale until the late 14th century. Today there are two
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