
MANUALLY OPERATED BALL VALVES AND CLOSED BOTTOM TAPER PLUG VALVES FOR GAS INSTALLATIONS FOR BUILDINGS.
STANDARD published on 30.4.1998
Designation standards: UNE-EN 331:1998
Note: WITHDRAWN
Publication date standards: 30.4.1998
The number of pages: 31
Approximate weight : 93 g (0.21 lbs)
Country: Spanish technical standard
Category: Technical standards UNE