機器
aluminum
broken
crushed
damage
disposal
dump
environment
ferrous material
ferrous metal
garbage
heap
industrial
industry
junk
junkyard
material
metal
metallic
old
pile
pipe
raw materials
recovery
recyclable materials
recycle
recycling
resource
reuse
rubbish
rust
rusted
rusty
scrap
scrap metal
scrap recycling
scrap yard
secondary raw
sorting waste
stack
steel
structure
technology
tin
trash
tube
waste
waste household
yard