機器
alloy
automated
cnc
department
drilling
engineer
engineering
equipment
factory
gloves
goggles
hard
hardhat
helmet
industrial
industry
instrument
job
labor
lathe
machining
man
manufactory
manufacture
manufacturing
mechanic
mechanical
metal
milling
occupation
operating
operator
overall
process
production
protective
repairman
safety
serviceman
skill
technician
tool
turning
work
worker
workman
workplace
workshop