機器
automated
center
computer
cutter
cutting
die
drill
engineer
engineering
equipment
experienced
factory
fitter
industrial
industry
instrument
laborer
lathe
machinery
machining
maintenance
man
manufacture
manufacturing
mechanic
mechanical
metal
metalwork
metalworking
milling
monitor
operative
operator
person
precision
production
service
steel
technician
technology
tool
tooling
turning
work
worker
workman
workshop