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By setting the iron bracket on the road, it can effectively limit pedestrians, livestock and non-motorized vehicles (such as bicycles) to cross the road at will, thus ensuring traffic safety. When someone or a vehicle accidentally breaks into the isolated area, the iron bracket can force the vehicle to change the direction of travel, so that it can return to the correct path, and help prevent traffic accidents. The guardrail bracket not only has good protective function but also can enhance the overall appearance and landscape effect of the road. After installation, the guardrail bracket is convenient for daily maintenance and cleaning, and has lower maintenance costs and longer service life, improving the overall benefit.