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NA 119-05-11 AA
Gully devices, gullies, backflow devices and air admittance valves for use inside buildings (CEN/TC 165/WG 11)

Contact

DIN-Normenausschuss Wasserwesen (NAW)
Mr.

Erik Heldt

Am DIN-Platz, Burggrafenstr. 6
10787 Berlin

Tel.: +49 30 2601-2799
Fax: +49 30 2601-42799

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