Disconnection devices without moving parts for the prevention of contamination of water by backflow - Specification for type AD air gaps with injector.
German title
Unterbrechung ohne bewegliche Teile zur Verhinderung von Trinkwasserverunreinigungen durch Rueckfliessen - Technische Festlegungen fuer freie Auslaeufe Typ AD mit Injektor.
Original language
English,
French
Pages
25
Original language
English,
French
Pages
25
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