abstract
aluminum
backdrop
background
chip
closeup
copper
curly
design
environment
factory
filings
garbage
gold
golden
industrial
industry
iron
manufacture
material
metal
metal shavings
metallurgy
nonferrous
plant
production
recycled
recycling
saw
scrap
sharp
shavings
shiny
spiral
steel
swarf
technology
texture
textured
wallpaper
waste
work