... . The raw materials of them come into carbon steel, stainless steel, and alloy steel, low temperature steel and high performance steel. Also, we can provide customized flanges according ... ., LTD.ProductsFlanges, Elbows, Tees, Concentric and Eccentric Reducers, Pipe Caps, Bends, Gaskets, Valve parts, etc.MaterialVarious stainless steel, carbon steel, alloy steelStandardASME, ANSI, DIN ...