describe

          brass Brass is an alloy made of copper and zinc, usually containing about 30% to 40% zinc. This alloy is widely favored for its corrosion resistance, easy processing, good mechanical properties and attractive golden appearance. Brass is harder and stronger than pure copper, but softer and weaker than bronze, so it is suitable for making mechanical parts, musical instruments, decorations, valves, pipe fittings, gaskets, ship components and architectural decorations. In addition, brass has good electrical and thermal conductivity, although not as good as pure copper, but it can still meet the requirements in some applications. The color of brass can be adjusted by polishing or electroplating to meet different aesthetic requirements.