Brass has extremely good plasticity (the best among brass) and high strength, good machinability, easy welding, and is very stable to general corrosion, but it is prone to corrosion cracking; Brass strip is an alloy of copper and zinc, named after its yellow color. Brass strips have excellent mechanical and wear resistance properties, and can be used to manufacture precision instruments, ship parts, gun casings, etc. Brass makes a pleasant sound when struck, so instruments such as gongs, cymbals, bells, and horns are all made of brass. According to its chemical composition, brass is divided into two types: ordinary copper and special brass.