There are many people in the cost of civil engineering, but there are few installers, and most of the municipal governments are boys. Let's talk about civil engineering and installation first. Installation is relatively easy to learn, but some civil engineering contents still need to be mastered. The most complicated knowledge of civil engineering is steel bar. Maybe many people don't like steel bars and find it difficult, but it's not. At present, the ratio of civil cost engineers to installation budget engineers is 3: 1, so it is conceivable that there are still many civil engineers.