environmental
adult
broken
caucasian
construction
crushed
dirty
disposal
dump
engineer
environment
equipment
factory
garbage
hardhat
heap
helmet
hold
industrial
industry
iron
job
junkyard
landfill
male
man
material
men
metal
metallic
objects
occupation
old
one
outdoors
people
person
recycle
recycling
rust
rusty
scrap
scrapyard
stack
stand
standing
steel
tube
waste
work
worker