abstract
anchor
attached
background
big
boat
bound
business
chain
chrome
close
closeup
cohesion
concept
conceptual
connect
connection
construction
continued
corroded
corrosion
depth
detail
dirty
durable
element
equipment
field
force
freedom
glossy
gray
grey
grunge
heavy
industrial
industry
iron
join
link
linked
lock
loop
metal
metallic
multitude
network
object
power
powerful
pull
reliable
ring
rust
rusty
safe
sea
secure
security
several
shallow
shiny
ship
solidarity
steel
strength
strong
symbol
together
union
united
up
white
work