機器
abstract
aluminum
background
closeup
color
colored
construction
curled
cutting
cuttings
engineering
equipment
factory
filings
frame
garbage
gray
heap
heavy
horizontal
industrial
industry
iron
isolatedbackground
machinery
machining
manufacturing
material
messy
metal
metallic
metalwork
milling
no
part
pattern
processing
recycling
scrap
shavings
shiny
silver
spiral
steel
steel shavings
swarf
technology
textured
tool
twisted
up
waste
wealth