Question: __________ addition increases the depth of hardness of steel.
[A].Chromium
Nickel
Tungsten
Vanadium
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.