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8246
Which of the following describe the effects of annealing steel and aluminum alloys?
| 1. |
decrease in internal stress. |
| 2. |
softening of the metal. |
| 3. |
improved corrosion resistance. |
| | A) 1, 3. |
| | B) 2, 3. |
| | C) 1, 2. |
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