steel production in electric furnaces
Schlüsselwörter
steel,
production,
electric,
furnace,
metal,
industry,
heat,
foundry,
iron,
factory,
industrial,
metallurgy,
hot,
liquid,
heavy,
manufacturing,
workshop,
red,
bright,
work,
flames,
melting,
environment,
technology,
high,
plant,
equipment,
power,
construction,
fire,
dangerous,
blast,
arc,
molten,
background,
dirty,
men at work,
light,
process,
burning,
casting,
business,
smelting,
people,
job,
metallurgical,
man,
glow
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