Walking in this forest of high-rise buildings full of steel and concrete everywhere, is there a moment when you pay attention to the buildings around you, understand them, and understand them? Perhaps in the eyes of most people, they all look the same, they are all made of concrete and steel, the only difference is the height and size. But if it is observed by an architectural enthusiast, it will definitely be able to see the gap. For example, the gap in raw materials. Indeed, most of the buildings are made of concrete and steel, but some of them are poured with fair-faced concrete, which can give people a more comfortable visual enjoyment. Some people may ask, what is fair-faced concrete? Is fair-faced concrete different from concrete? Today, let Xiao Simon introduce some general situation for you, so that everyone can better understand the difference between them.