英文關鍵字
abstract
aluminium
aluminum
animation
aqueduct
background
black
chrome
circle
closeup
construction
cylinder
dark
factory
group
heavy
industrial
industry
iron
loop
manufacture
manufacturing
metal
metalic
metallic
movie
new
objects
pipe
pipeline
pipes
piping
plumbing
product
production
profile
render
round
shiny
silver
stack
stainless
steel
tube
tubes
tubing
video
warehouse
workpiece