英文關鍵字
business
cable
closeup
conveyor
equipment
factory
industry
machine
machinery
manufacture
manufacturing
material
metal
modern
process
product
steel
wire
automation
background
bale
coil
cold
communication
conductive
development
electric
electrical
engineering
fiber
industrial
aluminum
power
rotation
detail
metallic
plant
movement
slow
production
water
cooling
hose
technology
insulation
line