hardness of steel greatly improves with what ???

plz ans

• Ajeet
• 4250 Views
• 3 Answers

• Anneali

  • Makwana
  • 06 Mar
  • 0 Comment

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• carbon

  • Vaibhav
  • 26 Jan
  • 0 Comment

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• it should be tempering heat treatment process

  • Kishan
  • 25 Jan
  • 0 Comment

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