aluminum

barge

big

broken

cargo

cars

clear

collecting

crane

dirty

dock

dump

ecology

environment

freight

garbage

grabber

gripping

heap

hydraulic

industrial

industry

iron

junk

load

loading

loadlifting

machine

machinery

magnetic

means

mechanical

mechanisms

metal

metallic

mobile

obsolete

old

part

picking

pile

platform

port

railway

reaching

recycle

recycling

rust

rusty

scrap

scrapyard

ship

stack

steel

storage

tool

train

transportation

transporting

unloading

waste

work

yard