Uses of iron, cobalt and nickel?

Jessica2005 | 19:32 Tue 28th Feb 2006 | How it Works

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i know there are lots of uses and i know a few,

but i need to know roughly what they are used for (i don't need anything particularly scientific)

and why it is used for that, is it because of its properties? and if so which ones.

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Ethel

Nickel

http://en.wikipedia.org/wiki/Nickel

Cobalt

http://en.wikipedia.org/wiki/Cobalt

Iron

http://en.wikipedia.org/wiki/Iron

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