Steel Flange, Steel Pipe Fittings manufacturer / supplier in China, offering ANSI B16.5 3 Inch NPT Threaded Raised Face Carbon Steel Flange, 1.5-Inch Long Radius 90-Degree Carbon Steel Butt Weld Elbow, 4″ X 3″ Carbon Steel Weld (Sch 40) Mild Steel Pipe Fittings Concentric Reducer and so on.