flange: 1.Competitive price,small order allowed 2.ISO9001:2008,14001 3.1/2''-240''( ... /2''-240''(DN15 to DN6000)TypeWelding Neck Flange, Slip on Flange, Threaded Flange, Socket Welding Flange, Blind Flange, OrificeFlange, Ring Joint Flanges, Long Welding Neck ... building,paper making,metallurgy,construction /water supply and sewage work Flange Facing TypesRaised Face, Flat Face, Ring Type Joint, Lap- ...