合金结构钢 40Cr，20-50CrSCr435H SCr3H SCr440H SCr415H SNC415H SNC21H SNC631H SNC2H SNC815H SNC22H SNCM220H SNCM21H SNCM420H SNCM23H SCM415H SCM418H SCM420H SCM435H SCM440H SCM445H SCM822H
易切削钢SUM11 SUM12 SUM21 SUM22 SUM22L SUM23 SUM23L SUM24L SUM25 SUM31 SUM32 SUM41 SUM42 SUM43
冷镦钢和紧固件用钢 SWRCH6R SWRCH8R SWRCH10R SWRCH12R SWRCH15R 希望给我们一个合作的机会，我们将做得更好，让我们携手并进，大展宏图！