機器
environmental
aluminum
broken
consumption
crushed
dirty
disposal
dump
ecological
ecology
environment
equipment
extrusion
factory
garbage
heap
industrial
industry
junk yard
manufacturing
material
materials
metal
outdoors
packaging
pile
plastic
pollution
recycle
recycled
recycling
renewable
renewal
resources
rotten
rubbish
scavenger
scrap
scrap yard
sorting
stack
technology
waste
waste disposal
waste management
waste recycling
working