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1. |
Stainless steels are annealed at what temperature? |
A. | 650°C – 700°C |
B. | 700°C – 750°C |
C. | 750°C – 800°C |
D. | 800°C – 850°C |
Answer» D. 800¬¨¬®‚Äö√†√ªC ‚Äö√Ñ√∂‚àö√ë‚àö¬® 850¬¨¬®‚Äö√†√ªC | |