Carbon Steel Cap, Carbon Steel Concentric Reducer, Sockolet manufacturer / supplier in China, offering A234wpb St20 CT. 20 GOST 17375-2001 Elbow Carbon Steel Pipe Fitting Flange Concentric Eccentric Reducer Transtion Equal Unequal Reducing Tee Bend Elbow, SS316L Elbow Lr Stainless Steel Pipe Fitting Elbow Flange Concentric Eccentric Reducer Equal Unequal Reducing Tee Transition Bend Elbow, Sgp Standard Carbon Steel Bw Pipe Fittings Bend Elbow Flange Concentric Eccentric Reducer Equal Unequal Reducing Tee Bend Elbow and so on.