... flanges, Welding neck flanges, Spectacle flanges,TG flanges,Socket welding flanges and Threaded flanges,Square flanges.Pressure ratingsclass ... 2500#FORMSWeld Neck Flanges, Slip On Flanges, Blind Flanges, Socket Weld Flanges, Lap Joint Flanges, Spectacles Flanges,Ring Joint Flanges ... " DN15 to DN2000Design: welding neck, slip on, blind, socket welding, threaded, lap-jointPressure: 150#, 300#, 600#,900#, ...