blast furnace
bright
building
casting
china
combustion
danger
environment
equipment
factory
fire
flame
foundry
furnace
glowing
heat
heating
heavy
hot
indoor
industrial
industry
interior
iron
ironworks
line
manufacture
manufacturing
melting
metal
metallic
metallurgical
metallurgy
mill
plant
pollute
power
production
smelting
spark
steel
steelworks
technical
technology
temperature
work
working
workshop