High quality C11000 Cu-ETP pure copper round rods for superior conductivity and durability Solid copper rod with precise dimensions for various industrial and DIY applications C11000 Copper Sheets High Performance C11000 Pure Copper Round Rod 6mm 8mm C18200 Copper Bar Reiner Kupferstab Copper bar is a solid, elongated piece of pure copper or a copper alloy that is commonly used in various industrial and manufacturing applications due to its excellent electrical conductivity, thermal conductivity, ductility, and corrosion resistance Metal/Alloy Type: Copper