Railway sound barrier installation costs how much money a square meter
There are some high-speed use of metal sound barrier medium price, the requirements of the high light, you have to set pc stamina, and relatively expensive
the price difference is very large, ranging from 200-500, the same specifications, color steel plate material price is the cheapest.
Different areas of the highway sound barrier to choose the material, style, sheet thickness, the amount of engineering is different,
