英文關鍵字
cable
equipment
factory
industry
line
manufacturing
plant
production
wire
heavy
metal
electric
hardware
industrial
technology
automated
manufacture
mechanism
modern
movement
thread
background
communication
conductor
contractor
dielectric
electricity
electroline
energy
engineering
highvoltage
insulated
insulation
power
rod
move
rim
rubber
insulator
manufactory
roller
winding
wiring
metalworking
white
closeup