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Pick out the wrong statement. | |
A. | Insulating refractories used in place of regular refractory bricks are usually called light weight refractories, and they have similar composition as heavy bricks. [Wrong Answer] |
B. | Graphite refractories are also called plumbago refractories. [Wrong Answer] |
C. | Superduty fireclay bricks correspond to a pyrometric cone equivalent of 26-28. [Correct Answer] |
D. | Calcined magnesite is also called dead burnt magnesite. [Wrong Answer] |