機器
above
business
caucasian
control
ear protector
energy
engineer
engineering
factory
foreman
goggles
helmet
hvac
improvement
industrial
industry
job
maintenance
male
man
mechanical
occupation
operator
pipe
plant
production
professional
protective
quality
safety
team
teamwork
technical
technician
technology
top view
two
white
work
worker
workers
workplace
workshop
workwear