Ductile iron casting Flange BS4504/ EN10992 Thread Flange, Weld on Flange, Clip Flange, Blank Flange, ductile iron ... iron cast flange.PN10/PN16,DN40-1400MM,weld on flange, thread flange, slip flange,blank flange.material:ISO1083 ductile iron 500 ... :1" 10 line,1" 11 line, ductile iron flange ( puddle, thread, weld on,taper) DI FLANGE