... 304, 316, 304L, 316L 5. ISO9001:2000 Stainless steel Welding Neck flange Our welding neck flanges feature high ... them come into carbon steel, stainless steel, and alloy steel, low temperature steel and high performance steel. Also, we can ... Concentric and Eccentric Reducers, Pipe Caps, Bends, Gaskets, Valve parts, etc.MaterialVarious stainless steel, carbon steel, alloy steelStandardASME, ANSI, DIN, ...