In rain, snow, and foggy weather, the high-speed guardrail can give the driver the correct direction because of the reflective effect, and ensure that it has a clear direction. When buying guardrails, you need to determine what level of protection you need, or tell the manufacturer directly where to install it, such as: the middle of the village road, the highway isolation zone, both sides of the highway, etc. The guardrail manufacturer will give it clearly The required specifications of the guardrail.

The guardrail board is divided into five levels: B, A, SB, SA, SS, and the middle-level guardrail board is mainly different in the waveform and material of the guardrail board. In terms of protection effect, it can also be divided into two-wave guardrail board, three-wave guardrail board, and two-wave three-wave transition board.

The highway cannot be separated from the protection of guardrails. Many people think that the guardrails are the same. In fact, the guardrails are different in different sections. So what kind of guardrail should be chosen for which section of the road? Generally, collisions are more likely to occur in the turning section. When the vehicle is turning, it is easy to rush out of the highway due to poor speed control. Therefore, guardrails with higher protection levels need to be installed at corners.