A.Room temperature and lower critical temperature
B.Between 500?C and 850?C
C.Between 900?C and 1400?C
D.Between 1400?C and 1600?C
E.Above 1600?C
A.Room temperature and lower critical temperature
B.Between 500?C and 850?C
C.Between 900?C and 1400?C
D.Between 1400?C and 1600?C
E.Above 1600?C