UNE-EN 1759-3:2004 FLANGES AND THEIR JOINTS. CIRCULAR FLANGES FOR PIPES, VALVES, FITTINGS AND ACCESSORIES, CLASS DESIGNATED. PART 3: COPPER ALLOY FLANGES.
2004UNE-EN 1759-3/AC:2004 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 3: Copper alloy flanges
2004UNE-EN 1759-3:2004 FLANGES AND THEIR JOINTS. CIRCULAR FLANGES FOR PIPES, VALVES, FITTINGS AND ACCESSORIES, CLASS DESIGNATED. PART 3: COPPER ALLOY FLANGES.