Report copyright - SPECIFICATION SHEET AcoustiSorb · NRC (frequencies hz) 125 0.20 250 0.60 500 1.00 1000 1.00 2000 1.00 4000 1.00 125 0.20 250 0.60 500 1.00 1000 1.00 2000 1.00 4000 1.00 NRC 0.90
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