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This – in the year 2002 developed and since 2003 sold – innovative and patented system revolutionized the ventilation process in the flat storage. It combines the advantages of the semi-circular ducts with those of the underfloor ventilation.
Our TBR which has already been sold over 10,000 times by the end of 2013 is usable up to a length of 30m. For details to the DLG test report, with test number 5666f, refer to the homepage of the DLG.
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