... 1.strict quality control2.reasonable prices3.best service 30CrMnSiNi2A Alloy steel C 0.27~0.34 Si 0.90 ... 0.90~1.20 Ni 1.40~1.80We are specialized in heat-resisting super alloy, anticorrosion alloy, precision alloy, flat steel, square ... steel, die steel, spring steel, carbon tool steel, stainless steel, alloy steel, ...