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A. prevent the bulging of flat surfaces
B. avoid explosion in furnace
C. prevent leakage of hot flue gases
D. support furnace freely from top
Answer
A. prevent the bulging of flat surfaces
Submitted by: Imdad Shahani
A. prevent the bulging of flat surfaces
B. avoid explosion in furnace
C. prevent leakage of hot flue gases
D. support furnace freely from top
Submitted by: Imdad Shahani