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Delta 4 Rond 1

Knauf

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Delta 4 Rond 1

Alpha w0.65
Plenum mm200
Absorption 125hz0.5
Absorption 250hz0.8
Absorption 500hz0.7
Absorption classL
Perforation codeDelta 4 Rond 1
Absorption 1000hz0.65
Absorption 2000hz0.6
Absorption 4000hz0.6
Certification referenceRE CSTB n° AC 98-020/2
Absorption test conditionLM 60

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