aged
color
corroded
corrosion
damaged
dirty
disposal
dump
ecology
environment
environmental
factory
garbage
heap
industrial
industry
iron
junk
junk yard
junkyard
large
many
materials
metal
old
outdoor
parts
pile
pollution
raw
recycling
recycling center
red
reuse
rubbish
rust
rusted
rusty
scrap
scrapyard
secondary
spare
stack
steel
trash
used
waste
yard