... joint flanges, Welding neck flanges, Spectacle flanges,TG flanges,Socket welding flanges and Threaded flanges,Square flanges.Pressure ratingsclass:150 300 400 600 900 1500 and 2500, PN :6 ... #, 600#, 900#, 1500#, 2500#FORMSWeld Neck Flanges, Slip On Flanges, Blind Flanges, Socket Weld Flanges, Lap Joint Flanges, Spectacles Flanges,Ring Joint Flanges, Orifice Flanges, Long Weld Neck Flanges,Deck ...