Brass is an alloy composed of copper and zinc. Brass has strong wear resistance. Brass is often used to make valves, water pipes, connecting pipes for internal and external air conditioners, and radiators.
Copper is industrial pure copper. Because of its rose red color and purple color after the oxide film is formed on the surface, it is generally called red copper, also known as red copper. It is copper containing a certain amount of oxygen, so it is also called oxygen-containing copper, and sometimes it can also be regarded as a copper alloy.
