Devices without moving parts for the prevention of contamination of water by backflow : part - 3 : specification for pipe interrupters of nominal size up to and including DN 42

Devices without moving parts for the prevention of contamination of water by backflow : part - 3 : specification for pipe interrupters of nominal size up to and including DN 42 - - London BSI 1982 - 4 p. - BSI 6281 : part - 3 : 1982 .







DBSI 6281 : part - 3 : 1982

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