機器
attached
background
blue sky
cable
chain
chained
chrome
close
closeup
connect
connection
construction
crane
department
detail
element
engineering
enterprise
equipment
fabric
factory
hang
heavy
hook
industrial
industry
iron
job
machinery
machining
manufacture
old
paint
parts
pattern
plant
power
production
protection
rig
rigging
rust
rusty chains
security
stainless
steel
texture
tool
up