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| Q. |
Cyaniding is the process of |
| A. | Adding carbon and nitrogen to increase hardness of specimen uniformly |
| B. | Adding carbon and nitrogen to increase hardness at the surface |
| C. | Adding carbon steel |
| D. | Adding carbon and nitrogen to increase hardness of core |
| E. | Creating a layer on the surface to impart the property of wear resistance |
| Answer» B. Adding carbon and nitrogen to increase hardness at the surface | |
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