英文關鍵字
auto
balance
blue
bolts
box
button
cable
change
connection
control
detail
door
down
electric
electricity
electronics
element
elevator
equipment
garage
gray
green
hanging
industrial
industry
isolated
machine
motion
object
old
overhead
panel
panic
part
power
push
red
remote
screws
service
single
station
stop
switch
tool
vehicle
white
wire
work