... 3.CNC lathe process 4.API&ISO certification stainless steel reducing socket.As the professional stainless steel pipe fittings manufacturer, we ... ,street elbow, red elbow ,tee, red tee, hex nipple, hex bushing, hex cap, hex plug, weld nipple, barrel nipple, union conical ... ,316L,301,430ETCSize1/8”-4”Design drawings: Samples: stainless steel reducing socket.