The usual energy consumption in electric arc furnace steel making is _____________ KWh/ton of steel ?
A. 60 – 100
B. 400 – 700
C. 1200 -1500
D. 2000 – 2300
A. 60 – 100
B. 400 – 700
C. 1200 -1500
D. 2000 – 2300