... , threaded, socket weld, lap-joint flange, blind flange Forged flanges 1.flange Material:carbon steel ,stainless steel2.Standards:ASME ... .Flange varieties:plate flange.slip-on flange,welding neck flange,threaded flange,socket weld flange,lap-joint flange, blind flange, spectacle-blind flange4.flange ... mpa-32mpa, PN0.25-PN42. 0,5K-20K6.Flange Surface treatment: transparent/black/yellow anti-rust paint, ...