Message:

<p>[QUOTE=&quot;Chinoiserie, post: 10338756, member: 79460&quot;]Slag is the waste material produced while refining iron or steel. It&#039;s all the crap and impurities that are removed. It is then slung on the slag heap. Probably where the derogatory term comes from. It will of course have some residue of metal left in it.[/QUOTE]</p><p><br /></p>

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