La description

The highway guard rail is the main form of the semi steel bar, and it is a continuous structure with corrugated steel fence board and supported by the main column. On the vehicle collision, the corrugated steel fence boards have good crashworthiness and energy absorption effect, it is not easy to be destroyed, and the vehicle and passengers have very good protection effect.
According to the collision avoidance rating can be divided into class A and S. The S level is enhanced barrier, suitable for use in the roadside especially dangerous road, a highway for special. According to the common roadside guardrail collision level can be divided into B, A, SB, SA, SS five.