app
belt
blueprint
caliper
chip
circuit
civil
cog
cogwheel
computer
design
draft
electrical
electronic
engineer
engineering
factory
gear
globe
hand
hard
hat
icon
industrial
laptop
line
linear
machinery
manufacturing
mechanical
monitoring
operator
outline
process
production
robot
set
settings
sliding
spanner
symbol
technician
technology
thin
tool
trammel
vector
work
worker
world