welded neck flange 1.Size:1/2''-24'' 2.Pressure:150LB-2500LB,PN6- ... by clients FLANGESProductswelding neck flange, slip on flange, blind flange, socket weld flange, threaded flange, lap joint flange, plate flange, reducing flange, spectacle blind flange, loose flangeSize and face ... ,DIN2631/2632/2633/2634/2635,DIN2565/2566,DIN2527 welded neck flange/forged flange