environmental
aluminum
アルミニウム
abstract
background
broken
building
collection
construction
container
dirty
disposal
dump
ecology
environment
environmental protection
garbage
heap
industrial
industry
iron
junk
junkyard
landfill
material
metal
metallic
old
pile
pollution
recycle
recycling
removal
renovation
rubbish
rust
rusty
scrap
scrap iron
scrap metal
stack
steel
trade
transport
transportation
trash
truck
waste
work
yard