copper wire on a copper surface. thin wire on the copper background.

drawing art wood sketch painting leaf branch carving tree flower plant pattern brown sculpture produce iron copper wire surface thin background copy space texture brown closeup copper thin wire background thermal conductivity electrical corrosion resistance malleability wiring cables electronics telecommunication power motor transformer inductor electromagnet cooling systems heaters networking decorative bundle thickness copperplate alloy space green energy grunge industrial industry metal metallic red surface technology textured wallpaper