welded neck flange 1.Size:1/2''-24'' ... /Eccentric Reducers, Caps, Stub EndsSize1/2''- 48” (seamless/welded)ScheduleSCH5S, 10S, 40S, 80S, SCH10, SCH20, SCH30, ... neck flange, slip on flange, blind flange, socket weld flange, threaded flange, lap joint flange, plate flange, reducing flange, spectacle blind flange, loose ... 2634/2635,DIN2565/2566,DIN2527 welded neck flange/forged flange