... , 347H, 409, 410, 410S, 420, 430Specificationscarbon reducer/pipe reducer/Eccentric Reducer Material:A234 WPB ST37 Standard:ASTM JIS DIN MSS ... Itemcarbon reducer/pipe reducer/Concentric ReducerSizeseamless,1/2"- 24"; ERW and ... Welding/ThreadShapeEqual / Reducing(elbow, tee,) Ecc/Con (reducer)Angel30Degree,45Deg,60Deg,90Deg,180DegSurface treatmentAnti rust black painted ...