Their high performance in terms of sound insulation (certified up to 41 dB) make this type of door the perfect solution for every environment, indispensable even where protection of privacy is a necessity (doctors' surgeries, courts, etc.).
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TPNR - 32 dB HTIBA1 35 dB IBR - 37 dB HTBS1 40 dB IBREI - 41 dB |
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