The linear thermal expansion of _______________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent?
A. Fireclay
B. Silica
C. Magnesite
D. Corundum
The linear thermal expansion of _______________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent?