
Closed expansion vessels with built in diaphragm for installation in water
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
ONORM EN 13831:2007 - Identical
NEN EN 13831:2007 - Identical
SS EN 13831 Ed. 1 (2007) - Identical
NS EN 13831 Ed. 1 (2007) - Identical
NBN EN 13831:2007 - Identical
NF EN 13831:2007 - Identical
BS EN 13831:2007 - Identical
UNI EN 13831:2008 - Identical
I.S. EN 13831:2007 - Identical