英文關鍵字
bale
baled
bales
bottle
bottles
chemical
chemicals
collection
composite
conveyor
disposable
disposal
ecology
environment
excavator
fabric
facility
factory
garbage
hazardous
heap
industrial
industry
material
modern
packaging
plant
plastic
process
processing
product
production
raw
recycle
recycled
recycling
resource
scrapyard
secondary
separating
separation
sorting
stack
storage
sustainable
trash
treatment
waste
workers