Desirable Hardness in a file is generally?
A) 45 HRC B) 60 HRC C)80 HRC D)90 HRC
- Sandip
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- 2909 दृश्य
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MunugantiMC
- 04 अप्रैल
A) 45 HRC B) 60 HRC C)80 HRC D)90 HRC
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