機器
abstract
attached
background
black
chain
close
closeup
concept
connect
connection
construction
design
detail
element
equipment
forestry
heavy
industrial
industry
iron
line
link
logging
machinery
metal
metallic
old
pattern
power
protection
rust
rusty
security
shape
silver
stainless
steel
strength
strong
symbol
technology
tool
tractor
transport
tsar
vehicle
vintage
white
yellow