機器
alluminium
beer factory
checking
chemical
chrome
clean
control panel
efficiency
engineering
equipment
factory
fermenter
food
glasses
graphs
industrial
industry
lab
laboratory
man at work
manufacturing
medical
medical workers
notes
operability
paper machine
pharmaciutical
pipe
pressure
production
readings
room
scientist
serviceability
shaft
stainless
steel
storage
tablet
tanks
vessel
workers
working