Aluminium scrap are avaiable in various quality and forms; they are identified by trading names...
The scrap copper are available in various types, identified by trade names (different from country to...
Aluminium alloys are traded on London Metal Exchange (LME) and its contract is conforming to...
High Grade primary aluminium is quoted on London Metal Exchange (LME). Its contract specifies a...
Metals
COPPER |
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There are two types of copper: copper primary (or extraction) and refined copper. The first is produced directly from the mines, and the second from refining (usually electrolytic) or primary copper scrap. Chile is the most important mineral-producing country, followed by the United States, Peru, China and Australia. It seems that the reason why the cops in the USA are nicknamed "cops" or "coppers" have to do with the brass buttons of their uniforms.
Ancient symbols used by alchemists of copper
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Copper is one of the metals most important. It is a brilliant reddish metallic luster, it is malleable, ductile, it is a good conductor of heat and electricity (second only to 
