測硬度的那個>////////<
HRB
1. 90 91.8 93.6 93.7 93.4
2. 83.1 84.3 85.4 85.6 85.7
3. 93.9 94.9 95 94.8 95.1
HRC
4. 29.6 30.6 31.6 30.8 30
5. 62.9 65.1 65.6 65 64.2
6. 64.5 64.5 65.4 65 65.5
6. 60 64 64.2 64.1 64.1
7. 63.3 64 63.1 64.1 63.2
7. 43.6 44.3 44 44 43.9
8. 55.8 58.2 57.8 58.9 59.4
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