1. Corrugated beam steel guardrail: It has the widest application range, high safety level, easy maintenance, and moderate cost. It is often used on the side of the main road, the center and the side of the road.

2. Square tube beam guardrail: mainly used in the central separation of bridges and snow-covered areas in the north, with high safety level, easy maintenance, and high cost, often used in northern areas.

3. Flexible guardrail: mainly used in scenic spots, with moderate safety level, difficult maintenance, and moderate cost, mainly used for roadside.

4. Concrete guardrail: mainly used for the separation of the service area and the center of the ramp, the safety level is moderate, the maintenance is difficult, and the cost is slightly lower.