abrasive
arc
blacksmith
blast
coal
construction
cutter
cutting
electric
equipment
factory
factory worker
forge
forging
foundry
furnace
grinder
heat
heavy
hot
industrial
industry
iron
line
machinery
manufacturing
metal
metallurgical
metallurgy
mill
ore
plant
production
smelting
steel
technology
treatment
wheel
work
worker
workshop
定額
Melting of metal in a steel plant. High temperature in the melting furnace. Metallurgical industry. Factory for the manufacture of metal pipes. High temperature in the melting furnace.の素材 [FY310115625486]
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