Copper plate (or sheet) is a very malleable form of metal. There are four main types of copper plate (or sheet): pure copper plate, brass plate, bronze plate and nickel silver plate. Pure copper plate has excellent thermal and electrical conductivity, excellent hot and cold processing performance, can be welded and brazed, and has good corrosion resistance; Brass plate has uniform color, excellent processability, excellent deep drawing capabilities and easy to electroplate and paint on, and also great corrosion resistance and weldability; Bronze plate has excellent cold workability, electroplating, hot dip plating and welding performance and high strength, elasticity and resistance to seawater and process atmosphere corrosion; Nickel silver plate also has good cold and processing performance, good electroplating, hot dip plating and welding performance, high strength, high elasticity, corrosion resistance, fatigue resistance, shielding and other properties.