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护栏板是一种操纵土基、立柱、横梁的变形来吸引碰撞能量,迫使改变标的目的,恢复到正常行驶标的目的,防止车辆公路波形护栏板的分类:The guardrail plate is a kind of deformation by using soil base, column and crossbeam to attract collision energy, forcing the vehicle to change direction, return to normal driving direction, to prevent the vehicle off the road, protect the passengers and vehicles in the car, so as to reduce the loss of the accident. Classification of highway wave barrier plate:1)、按防撞品级,可分为A级和S级。S级增强型的,合用于路侧出格危险的路段利用。A级护栏则用于生产公路。常用栏板又分为B、A、SB、SA、SS等五级。