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    Home / Articles / News / Information / CERTIFICATE - noise reduction coeficient (NRC) – (deNoise-2600 _ SonicVoid-2600 / Double layer) Riverbank Acoustic Laboratory

    CERTIFICATE - noise reduction coeficient (NRC) – (deNoise-2600 _ SonicVoid-2600 / Double layer) Riverbank Acoustic Laboratory

    double layer

    deNoise2600_SonicVoid2600-NRC-test_1part

     deNoise2600-SonicVoid2600_NRC-test_2part

     
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