Forged Blind Flange 1.Standard:DIN/ANSI/ASME/JIS ... 3.Pressure:class150,300,600,900,1500,2500 Blind FlangeDescription MaterialCarbon Steel:A105(N) C22.8 ST ... BS, AS, JIS, JPI, etcTypeSlip-On, Welding Neck, Blind, Socket Welding, Threaded, Lap Joint and Plate etcConnectionButt Weld ... oil field and refinery as Steel Pipes, Pipe Fittings, Flange, Valves, Gasket, Petroleum Machinery, Fasteners, UV sterilizer ...