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Examples of perforated metals
Soundproof wall
Soundproof wall surface punching board for high-speed capital
On the highway in the city center a large number of soundproof walls are installed so that noises of the car do not leak outside the road because the expressway runs through neighboring residents and office building streets, commercial areas, etc. A punching board is used for the face plate It is.
Punching metal used
Example of Sound insulation
Examples of perforated metals
