What material is used for the lining of the induction furnace?

Fitaovana lafaoro alkaly: ampiasaina indrindra amin’ny fandrendrehana vy maro isan-karazany toy ny vy mahery, vy vy, vy manganese avo, vy chromium avo, vy vy, vy tsy misy fangarony, sns.

Acid lining: Mainly used for the working lining of coreless induction furnace for melting and insulating cast iron.