abstract
aluminum
background
chip
chips
closeup
copper
curly
cutting
drilling
engineering
environment
factory
garbage
heap
heavy
industrial
industry
iron
lathe
machinery
manufacture
manufacturing
material
metal
metal shavings
metallurgy
metalwork
milling
pile
processing
production
recycle
recycling
scrap
sharp
shavings
shiny
silver
spiral
steel
swarf
technical
technology
texture
waste
work