... SWRH72B Available Standard:GB Standard,AISI Standar Steel Wire Rod 5.5mmSWRH82B,SWRH77B,SWRS82B, H08A,ER70S-6 ... wire rod of SWRS82B features stable chemical composition,Low harmful elements,minor decarburization,good surface quality,high ... wire rod of SWRH77B and SWRH82B is mostly used to produce high-strength and low-relaxation per-stressed plain wire,indented wire,negative threaded wire ...