Manually operated ball valves and closed bottom taper plug valves for gas installations for buildings
NORM herausgegeben am 1.8.1999
Designation standards: ČSN EN 331
Classification mark: 134120
Catalog number: 55004
Note: UNGÜLTIG
Publication date standards: 1.8.1999
Approximate weight : 84 g (0.19 lbs)
Country: Czech technical standard
Kategorie: Technische Normen ČSN