carbon steel concentric reducer1.We have our own factory 2.Size:25- ... .Can do special design ProductElbow ;Pipe elbow;Pressing elbow,carbon steel concentric reducerSize25-600mmMaterialCarbon stee(l20#,20G,16Mn,16MnR,106B,St45 ... .8)Type U-bendWall thicknesssch20;sch30;sch40,STD,schSGP.sch80,sch160StandardANSI,ASME,DIN ...