燃やす
background
blast
bright
burner
casting
china
closeup
color
conveyor
environment
equipment
factory
fire
flame
forging
foundry
fuel
furnace
heat
hot
hot rolled steel
industrial
industry
iron
manufacture
manufacturing
melting
metal
metallurgical
metallurgy
mill
orange
plant
pollution
power
process
production
red
roller
rolling
smelting
smoke
spark
steel
stove
technical
temperature
yellow