C11000 Copper Coil is an electrolytic tough pitch (ETP) copper coil complying with ASTM standards, with a minimum copper content of 99.90%. It features outstanding electrical and thermal conductivity, excellent ductility, and superior formability for rolling, bending, stamping, and deep drawing. It offers good corrosion resistance in atmospheric and freshwater environments, with uniform thickness, smooth surface, and precise dimensional tolerance. Stable in performance and easy to process, it is the most widely used pure copper coil for electrical, thermal, and general industrial applications.