... 3401 ,JIS SCMnH11 4.11-14%Mn (Hadfield steel) In early 2002, with great efforts of professional and technical personnel ... fully achieved the same quality and performance with imported ones in this kind (corresponding foreign brands: JIS:SCMnH11, AFNOR: ... medium level users of foreign-owned and joint venture enterprises in shipbuilding, automobile, machinery, power generation, cement, mining, coal, ...