... :AISI1005-1085,AISI52100,AISI304,316,420,440 specification:thorough hardened,super-fine surface size:1-25.4mm material:AISI1005-1085,AISI52100,AISI304 ... ,316,420,440specification:thorough hardened,super-fine surfacesize:1-25.4mmthe specifications of our products is:material ...