... alloy steel, low temperature steel and high performance steel. Also, we can provide customized flanges according to customers'requirements.HENAN BROAD TOP METALWORK CO., LTD ... .ProductsFlanges, Elbows, Tees, Concentric and Eccentric Reducers, Pipe Caps, Bends, Gaskets, Valve parts, etc.MaterialVarious stainless steel, carbon steel, alloy steelStandardASME ...