機器
abstract
aluminum
background
bin
cabbage
chip
danger
design
dirty
ecosystem
environment
factory
ferrous
fragments
hard
hazardous
heavy
industrial
industry
junkyard
lathe
machinery
management
manufacturing
material
metal
metals
milling
objects
processing
recycle
recycling
ring
roll
rusty
scraped
shape
sharp
shavings
shiny
steel
surface
technology
textured
tools
turning
waste
work
workshop