Usted buscó: nbn (Italiano - Inglés)

nbn
nbn

nbn 407: biochemical oxygen demand
nbn 407: biochemical oxygen demand.

nbn t 91-201 determinaition of the chemical oxygen demand.
nbn t 91-201 determination of the chemical oxygen demand.

per quanto riguarda le eventuali bavette di zinco o piombo che risalgono sotto la tegola, sono applicabili le regole generali dell’nbn b 41 e nbn b 42.
regarding the possibility of zinc or lead flashing being pushed under the tile, the general rules of nbn b 41 and nbn b 42 are applicable.