1) Elbow steel 20 2)Material:Carbon steel 3)Size:1/2-144aa 4)45,90,180 degree elbow 5)WT:sch10-xx Elbow steel 20 WeldedSeamlessNominal SizeDN250-DN1800DN15-DN700Wall ThicknessSTD,XS,XXS,SCH10,SCH20,SCH30,SCH40,SCH60,SCH80,SCH160,ETCBending RadiusLR30,45,60,90,180 SR30,45,60,90,180 1.0D, 1.5D, 2.0D, 2.5D, 3D,4D,5D,6D,7D-40D.Bending Angle30°45°90°180°StandardASMEANSI B16.9,ANSI B16.28,MSS ...