Prirubnice i njihovi spojevi - Kružne prirubnice za cevi, armature, fazonske komade i pribor, koje nose oznaku PN - Deo 3: Prirubnice od legura bakra - Ispravka 1
Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 3: Copper alloy flanges