apparatus
apron
box
business
button
cabinet
commutator
console
control
cover
detector
device
element
extra
facility
factory
flap
frontplate
industry
inside
instance
key
location
machinery
mechanism
metal
oil
olive
panelboard
place
plain
pressing
production
protecting
protective
pushbutton
sensor
set
shield
switching
system
technology
terminal
virgin
working
worksite