__PCE value (Segar cone) of superduty refractories is more than 33, which is equivalent to a temperature of __________ ¬¨‚àûC.__

__PCE value (Segar cone) of superduty refractories is more than 33, wh

1.	__PCE value (Segar cone) of superduty refractories is more than 33, which is equivalent to a temperature of __________ ¬¨‚àûC.__
A.	1520
B.	1630
C.	1670
D.	1730
Answer» E.