steel:chrome steel,high carbon steel, 100Cr6, SUJ2
Grade:G20
Hardness:HRc62-67
steel:chrome steel,high carbon steel, 100Cr6, SUJ2
Grade:G40
Hardness:HRc61-67
steel:GCr15,high carbon steel, 100Cr6, SUJ2
Grade:G40
Hardness:HRc61-67
steel:high chrome, high carbon and alloy,E52100
precision:G40
hardness:HRc61 to HRc67