Traffic guardrails are the core infrastructure that ensures road traffic order and safety. With "isolation and diversion, collision protection, warning and guidance" as the core functions, they are made of high-strength substrates such as steel and aluminum alloy, and processed through welding, anti-corrosion, and forming processes. Its structural design adapts to the safety requirements of different traffic scenarios, effectively separating motor vehicle lanes, non motor vehicle lanes, and sidewalks, blocking vehicles from changing lanes and pedestrians from crossing the road, reducing the incidence of traffic accidents, and improving road traffic efficiency through clear visual guidance. Widely used in various traffic scenarios such as urban roads, highways, bridges and tunnels, intersections and ramps, it is a "rigid barrier" to maintain traffic order and ensure the safety of people and vehicles.