... /API,NF,GOST,EN,ISO and Non standardSize1/2"-48"TypeSlip-on flanges, Blind flanges, Lap joint flanges, Welding neck flanges, Spectacle flanges,TG flanges,Socket welding flanges and ... #, 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 Flange, etc.TYPESD ...