Rebar is mainly used as construction steel. Why should the country engage in homosexual infrastructure construction, infrastructure will drive the consumption of traditional industries such as steel and cement, rebar repair is the most basic building consumables, the first of which, such as the Three Gorges Dam, tunnel support and other large infrastructure projects, all need rebar. In the main traffic roads with frequent traffic of heavy vehicles, in order to enhance the compressive strength of the road surface, the way of threaded concrete is often used to pave the road, which is better than the pressure resistance of the asphalt road surface.