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Acoustic barrier PNB-D double absorption
The sound-absorbing PNB-D acoustic barrier consists of two profiled thermo-lacquered aluminium sheets, both with perforations (absorbing sides).
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The sound-absorbing PNB-D acoustic barrier consists of two profiled thermo-lacquered aluminium sheets, both with perforations (absorbing sides). On the inside of the panel, between the two aluminium sheets, rock wool with black protective fleece and insulation foil is placed. When joined together, they form a casing which is closed at the ends with a polypropylene cover. This acoustic barrier can be adapted to HEA/B 180 type profiles.
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