... -6,SWRH62A,SWRH72A,SWRH72B Available Standard:GB Standard,AISI Standar Steel Wire Rod 5.5mmSWRH82B,SWRH77B,SWRS82B, H08A,ER70S-6,SWRH62A ... -relaxation per-stressed plain wire,indented wire,negative threaded wire,steel strand and rope,which are widely used in rail sleeper ... are guaranteed.It also has characteristics of easy drawing and mould saving when using.H08A is mainly used to produce various ...