Co-base superalloys can sustain temperature ___________

• A. 500-600 ¬¨¬®‚Äö√†√ªC
• B. 600-740 ¬¨¬®‚Äö√†√ªC
• C. 700-1040 ¬¨¬®‚Äö√†√ªC
• D. 1000-2040 ¬¨¬®‚Äö√†√ªC