MCQOPTIONS
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MCQOPTIONS
| 1. |
Nitriding steels are tempered at about ________ |
| A. | 100-200<sup>o</sup>C |
| B. | 300-450<sup>o</sup>C |
| C. | 600-700<sup>o</sup>C |
| D. | 800-950<sup>o</sup>C |
| Answer» D. 800-950<sup>o</sup>C | |