The top documents tagged [sound insulation index]

23 November 2012Sound insulation1. 23 November 2012Sound insulation216 November 2012Sound Absorption2 Sound against a wall Balance of sound energy impinging.

23 November 2012Sound insulation1. 23 November 2012Sound insulation216 November 2012Sound Absorption2 Sound against a wall Balance of sound energy impinging.

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