... , SMnC420, SCr435, SCr440, SACM645, SUM22L, SUP6, SUP7, SUP9A, SUP10, SUJ2GB: 30CrMo, 35CrMoV, 40CrMo, 40CrMnMo, 12CrNi3, 12CrNi2, 20CrNi2MoH, 40CrNiMoA, 20CrNiMo, 50CrV, 15CrMn ... such well-known special steel enterprises as Fushun Special Steel, Beiman Special Steel, Dalian Special Steel, Xining Special Steel, Xingcheng Steel, Wuyang Steel and Benxi Iron and ...