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Q. |
For high strength or rigidity, which type of coatings are recommended for metals? |
A. | other metal coatings |
B. | non-metallic coatings |
C. | all of the mentioned |
D. | none of the mentioned |
Answer» B. non-metallic coatings | |
Explanation: for high strength and rigidity, non-metallic coatings are recommended for metals. |
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