4Cr10Si2Mo 4Cr9Si2 40Cr
4Cr10Si2Mo 4Cr..
W6Mo5Cr4V2AL 3..
W6Mo5Cr4V2 W9M..
3Cr2W8V CrWMn
Cr12MoV 3Cr2W8..
16MnCr5 GCr15