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Q. |
Carburizing is done |
A. | By heating 200?C below critical temperature |
B. | On steels with carbon percentage of 0.5% |
C. | To induce soft surface for machining on a hard core |
D. | To improve hardenability of steel |
E. | On steel with carbon percentage of 0.7% |
Answer» B. On steels with carbon percentage of 0.5% |
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