Sillimanite (Al2O3.SiO2) refractory, which is a neutral refractory, is not used in________________?
(A) Pottery furnace
(B) Glass melting furnace
(C) Crucibles
(D) Gas retorts
Sillimanite (Al2O3.SiO2) refractory, which is a neutral refractory, is not used in________________?
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