steel:GCr15, E52100, 100Cr6, SUJ2
Grade:G40
Hardness:HRc61-67
steel:GCr15, E52100, 100Cr6, SUJ2
Grade:G40
Hardness:HRc61-67
material:GCr15, 100Cr6, high chrome, high carbon
precision:G40
hardness:HRc61 to HRc67
steel:GCr15SiMn,100CrSiMn6-4,E52100
grade:G40 or G60
hardness:≤HRc67
material:high chrome steel, 100Cr6,SUJ2
ball precision:G40
hardness:HRc 60-67
steel:forged chrome steel,100Cr6, SUJ2,GCr15
precision:G40
Hardness:HRc61-67