機器
company
construction
danger
equipment
europeans
factory
fire
flame
founding
foundry
furnace
group
heat
heavy
hot
industrial
industry
iron
job
male
man
manufacture
manufacturing
mechanic
men
metal
metallurgy
mill
occupation
people
production
safety
steel
steelworks
team
teamwork
technology
work
work wear
worker
working
workman
workplace
workshop