MCQOPTIONS
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| 1. |
At what temperature range, does the melting of multi components glass systems takes place? |
| A. | 100-300 degree celsius |
| B. | 600-800 degree celsius |
| C. | 900-1300 degree celsius |
| D. | 1500-1800 degree celsius |
| Answer» D. 1500-1800 degree celsius | |