PCE value (Segar cone) of superduty refractories is more than 33, which is equivalent to a temperature of __________ Â°C.

PCE value (Segar cone) of superduty refractories is more than 33, whic

1.	PCE value (Segar cone) of superduty refractories is more than 33, which is equivalent to a temperature of __________ Â°C.
A.	1520
B.	1630
C.	1670
D.	1730
Answer» E.