機器
3d
additive
art
background
black
business
computer
concept
contour
creative
design
digital
engineering
equipment
flat
future
gold
golden
graphic
icon
illustration
industrial
industry
innovation
isolated
line
linear
lineart
manufacturing
material
model
modern
object
outline
plastic
print
printer
printing
process
production
prototype
shape
sign
symbol
tech
technical
technology
tool