Steel is a popular metal alloy, mainly composed of iron and some carbon. Other elements are sometimes added, such as manganese, chromium, vanadium and tungsten. Modern steel making began in 1858, when mass production had become possible. Steel has thermal conductivity, high corrosion resistance, ductility and ductility. Today's highly developed technology of CNC machining allows us to produce the most complex parts with more perfection, the cost is lower than you think, and the speed is much faster. We will discuss the cnc steel machining parts in this article.