... resistant 3.High temperature resistant ansi b16.5 welding neck flange 600 Welding Neck Flanges, Slip on ... ,ANSI,ASME ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48DIN : DIN2527, DIN2566, ... pipe fittings, industrial, pressure vessel etc11.Connection: flange nuts, bolts connection12.Product features: resistance to corrosion ... s special requirements ansi b16.5 welding neck flange 600