DS EN 10253-2:2007
DS EN 10253-2:2007 Butt-Welding Pipe Fittings - Part 2: Non Alloy And Ferritic Alloy Steels With Specific Inspection Requirements Defines the technical delivery requirements for seamless and welded butt welding fittings (elbows, concentric and eccentric reducers, equal and reducing tees, caps) made of carbon and alloy steel whic