t.akustik PA-S80 8pcs set, Pyramid Foam Absorber, Main frequency range: From approx. 1000 Hz, Material: Polyurethane foam, Bulk density: 25.0 ± 5%, Compressive hardness at 40% deformation: 5.0 ± 0.5 kPa, Tensile strength: At least 100 kPa, Elongation at break: At least 80%, Flame-retardant to MVSS 302 (flame rate
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