Rebar is an indispensable material in modern construction and civil engineering, with its high strength and toughness, it can withstand heavy loads and absorb energy, reducing the risk of brittleness. At the same time, the steel bar is easy to process and combines well with the concrete to form a high-performance composite material and improve the overall bearing capacity of the structure. In short, the steel bar with its excellent performance, become the cornerstone of modern engineering construction.