Copper bar is a kind of non-ferrous metal processing bar with good processing performance and high conductivity. It is mainly divided into brass rod (copper zinc alloy, cheaper) and red copper rod (higher copper content). Brass rod is a rod-like object made of copper and zinc alloy. It is named for its yellow color. Brass with copper content of 56%~68% has a melting point of 934~967 degrees. Brass has good mechanical properties and wear resistance, and can be used to manufacture precision instruments, ship parts, gun casings, etc. Different zinc content will also have different colors. For example, 18% – 20% zinc content will be red and yellow, while 20% – 30% zinc content will be brown and yellow. In addition, brass has a unique sound, so the eastern gongs, cymbals, bells, trumpets and other instruments, as well as the western brass instruments, are made of brass.