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Knauf

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Panneau acoustique perforé - sans laine minérale

Alpha w	0.55
Nominal	Plénum 40 mm
Material	gypsum
Mineral wool	sans
Perforation type	carrée, 3,5 x 3,5 mm
Installation method	Bord B+ sur ossature métallique CD60, Tasseaux bois bord biseauté
Suspension height mm	40
Absorption coefficient 125hz	0.05
Absorption coefficient 250hz	0.25
Absorption coefficient 500hz	0.6
Absorption coefficient 1000hz	0.7
Absorption coefficient 2000hz	0.75
Absorption coefficient 4000hz	0.7

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