機器
big
chain
concept
connect
connection
construction
decoration
detail
dirty
element
engineering
equipment
hang
hanging
heavy
industrial
industry
iron
isolated
lift
lifting
line
link
lock
long
metal
metallic
object
old
part
pattern
pulley
rough
row
rust
rusty
security
set
side
steel
straight
strength
strong
tool
up
used
vertical
white
work