Product Name:EJECTOR Sleeve Material: HSS, SKD61, SKH51 ,ASP23 .... Hardness:HRC 60+ Standard:DIN, HASCO,DANLY, DME , MISUMI. ... EJECTOR PIN(EJECTOR SLEEVE,RECTANGULAR EJECTOR PIN)Material: HSS, SKD61, SKH51 ,SKD11,HSS M-2, SKH9 ,HSS M-2, SKD11,ASP23,ASP30 etcHardness:After surface ... treatment HRC 60+ Standard:DIN, HASCO,DANLY, DME , MISUMI, PUNCH ...