1. Highway guardrail board is the main form of semi-steel guardrail. It is a continuous structure spliced with corrugated steel guardrail boards and supported by uprights.

2. It uses the deformation of the soil foundation, columns, and beams to absorb the collision energy, and force the out-of-control vehicles to change direction and return to the normal driving direction to prevent the vehicles from rushing out of the road, so as to protect the vehicles and passengers and reduce the damage caused by accidents.

3. Highway guardrail is both soft and flexible, has a strong ability to absorb collision energy, has a good line of sight induction function, can be coordinated with the road line, beautiful appearance, can be used on small radius bends, damage part is easy to replace.