機器
abstract
background
chips
closeup
curled
curly
cutting
drilling
engineering
fabrication
filings
garbage
gray
heavy
industrial
industry
iron
isolated
junk
lathe
manufacture
manufacturing
material
metal
metallic
metalwork
milling
pile
production
recycle
recycling
rubbish
scrap
sharp
shaving
shavings
shine
shiny
silver
spiral
stainless
steel
swarf
technology
texture
trash
turnings
waste
white