Metal noise barriers Material:galvanized plate, aluminium plate, color steel plate, iron plate, other Metal thickness:0.6mm, 0.7mm, 0.8mm, 1.0mm, other Finished thickness:50cm, 60cm, 80cm, 100cm, other Metal noise barriers can effectively decrease the high-frequency by10-15db. The installation of the metal noise barrier can be designed according to the distance between the sound source and the receiver.The sound can be belowed 6db by the height of the screen double. Metal thickness:0.6mm, 0.7mm, 0.8mm, 1.0mm, other Finished thickness:50cm, 60cm, 80cm, 100cm, other
