機器
blue
build
building
construction
craftsman
crane
dangerous
entrepreneur
equipment
factory
helmet
industrial
industry
iron
job
labor
laborer
light
machinist
male
man
manufacture
manufacturing
mask
metal
occupation
people
person
profession
protection
protective
repair
safety
steel
technical
technology
tool
tools
tower
trained
visor
weld
welded
welder
welding
work
worker
workplace