Zircon refractories have – McqOptions

MCQOPTIONS

1.	Zircon refractories have
A.	low co-efficient of expansion.
B.	high RUL (1600 C) and refractoriness (> 2000 C).
C.	high spalling resistance.
D.	all (a), (b) and (c).
Answer» E.

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