background
blue
chips
closeup
copper
curly
cutting
discarded
drilling
engineering
environment
fabrication
filings
flakes
garbage
gray
heap
heavy
industrial
industry
iron
junk
lathe
machinery
manufacture
material
messy
metal
milling
pile
production
recycling
rip
rubbish
scrap
sharp
shave
shiny
silver
spiral
steel
storage
technical
texture
trash
waste
white
work
workshop