What is HRC steel?

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Tags

1. #indicates
2. #expressed
3. #relatively
4. #rockwell
5. #times
6. #value
7. #softer
8. #higher
9. #other
10. #while
11. #single
12. #lower
13. #means
14. #speaking
15. #harder
16. #sometimes
17. #hardness
18. #range
19. #number
20. #steel