Choosing soundproofing panels is not an easy task for the vast majority of people. In this case, either accept the current situation of unsatisfactory wall sound insulation or take remedial measures. Therefore, in order to avoid wasting your money, time, and energy, it is necessary for you to have a......
There are many small holes on the surface of polyester fiber sound -absorbing board to absorb noise sound waves. The sound absorption coefficient and sound of polyester fiber sound -absorbing board are related.
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