background
blast
bright
business
cast
cast iron
casting
china
combustion
danger
environment
equipment
factory
fire
flame
foundry
furnace
glowing
heat
heavy
hot
industrial
industry
interior
iron
machinery
manufacture
manufacturing
melting
metal
metallurgical
metallurgy
mill
molten
people
plant
pollute
pot
power
processing
production
safety
smelting
steel
steelworks
technical
technology
work
worker
workshop