... , SCM440, SNC815, SNC415, SNC420H, SNCM439, SNCM220, SUP10, SCr415, SCr420, SMnC420, SCr435, SCr440, SACM645, SUM22L, SUP6, SUP7, SUP9A, SUP10, SUJ2GB: 30CrMo, 35CrMoV, 40CrMo, 40CrMnMo, 12CrNi3 ... , anticorrosion alloy, precision alloy, flat steel, square steel, die steel, spring steel, carbon tool steel, stainless steel, alloy steel, high speed ...