... 6,SWRH62A,SWRH72A,SWRH72B Available Standard:GB Standard,AISI S carbon steel wire rod 5.5mmSWRH82B,SWRH77B,SWRS82B, H08A,ER70S-6,SWRH62A ... used in rail sleeper,highway,bridge,bridge cable,large cement pipe,etc.Classification 2:Welding wire rodAvailable Diameter(mm):Φ5. ... high percentage of sorbite,low percentage of inclusion,moderate grain size and excellent drawing performance.It is used to produce ...