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schallschutz · Rw 37 dB 60 50 40 30 20 10 60 50 40 30 10 Schalldämmmass R in dB Frequenz in Hz 63 125 250 500 1000 2000 4000 Koinzidenzeinbruch 6 mm Rw 37 dB 8 / 16 a R/K R / 6
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