apprentice
apprenticeship
artisan
blue collar worker
business
colleagues
company
construction
cooperation
craftsman
employee
factory
group
hardhat
industry
iron
labor protection
lesson
locksmithery
man
men at work
metal construction
metal factory
metallurgy
metalwork
metalworker
metalworking
middle class
middleclass
people
production
staff
steel
surgery
team
teamwork
together
trade
trainee
warehouse clerk
warehouseman
work
worker
working
workshop