... materials of them come into carbon steel, stainless steel, and alloy steel, low temperature steel and high performance steel. Also, we can provide ... Reducers, Pipe Caps, Bends, Gaskets, Valve parts, etc.MaterialVarious stainless steel, carbon steel, alloy steelStandardASME, ANSI, DIN, JIS, GB, BS, ... also available and special design are warmly welcome SS316 Stainless Steel Welding Neck Flange