1. 
   Sheet metal
   A toy material that is rolled into a thin plate made of brass, copper and, in the case of most toys, steel. First toy usage in the United States dates back to 1895.
   Found op http://www.antiquetoys.com/glossary.html
   
   
2. 
   sheet metal
   [n] - sheet of metal formed into a thin plate
   Found op http://www.webdictionary.co.uk/definition.php?query=sheet%20metal
   
   
3. 
   sheet metal
   noun sheet of metal formed into a thin plate
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=sheet%20metal
   
   
4. 
   Sheet metal
   Sheet metal is simply metal formed into thin and flat pieces. It is one of the fundamental forms used in metalworking, and can be cut and bent into a variety of different shapes. Countless everyday objects are constructed of the material. Thicknesses can vary significantly, although extremely thin ...
   Found op http://en.wikipedia.org/wiki/Sheet_metal
   
   

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