機器
active
business
caucasian
construction
constructor
craftsman
danger
engineer
engineering
equipment
factory
folding
foreman
handcrafter
handyman
hearing
heavy
helmet
improvement
industrial
industry
job
male
man
manager
manufacturing
mechanic
metal
middle
occupation
operator
plant
portrait
production
profession
professional
protective
safety
saw
steel
teamplay
teamwork
technician
uniform
work
worker
workman
workplace
workshop