機器
abstract
background
black
closeup
cnc
construction
curve
cut
cutting
fabrication
factory
file
filing
form
industrial
industry
junkyard
lathe
machinery
manufacturing
material
mechanics
metal
metalwork
mill
milling
pattern
precision
product
production
recyclable
recycle
reuse
scrap
shapes
sharp
shaving
shavings
spiral
steel
technology
texture
waste