合金结构钢:(日本)***n420,***n433,***n438,***n443,SCr415, SCr420,SCr430,SCr435,SCr440, SCr445, SCM415, SCM420,SCM440,SUP10,***n***20, SCM421 , SCM440, SN***15, SNC815, SNC836, SNC815, SNCM220,SNCM439
(韩国)***n420, ***n443, SCr415, SCr420, SCr440, SCM415, SCM440, SPS6, ***n***20, SCM421,SCM440,SN***15, SNC836, SNCM220,SNCM439
