builder
call
computer
concrete
console
construct
construction
constructor
contractor
control
control panel
coordinate
display
employee
expertise
factory
glove
hardhat
indoors
industrial
industry
information
inspector
job
keyboard
labor
man
manager
manufacture
monitor
motivated
multiethnic
occupation
operate
operator
plant
production
reflective vest
safety equipment
supervisor
supply
switchboard
system
walkie talkie
work
worker
workman