Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns.
Options
A. 1800
B. 2200
C. 2400
D. 2700
Correct Answer
2700
More questions
1. Use of 'grinding aids' is done in __________ grinding.