This model also won the Blender Week Day Challenge #55 April 8, 2009. It's a low poly model of an old gas radiator. The texture used, copper oxide, is in the public domain, from the ancient Blender Materials CD.
This is a trick we used at this contest to show the wires, basically a different material. I believe now there is a better way to do it.
Probably it is a stupid question for some people but How to set up the edge lines on the material the same as u made it in ur render