High Mn, 13% Mn Steel, Hadfield Steel steelmax2019-01-14T10:40:39+09:003월 21st, 2018| Hi-Mn (하이망간)이라고 합니다 DIN 1.3401, X120Mn12, ASTM A128 B-2 JIS SCMnH2 –Steel Casting Manganese High Grade 2