brass
Brass is red copper and zinc alloy, named after the color yellow. Copper content of 62% to 68% of the brass, the melting point of 934 ~ 967 degrees. Brass mechanical properties and wear resistance are very good, can be used to manufacture precision instruments, ship parts, shells and other shells. Zinc content is different, there will be different colors, such as zinc content of 18% -20% will be red and yellow, and zinc content of 20% -30% will be brown. Another brass knocked out the sound unique, so the East gongs, cymbals, bells, numbers and other musical instruments, as well as the Western brass instruments are made of brass. ...