機器
absorber
big
bobbin
cable
cabling
circle
closeup
constructions
cran
detail
dock
engineering
equipment
factory
heavy
hoist
industrial
industry
iron
large
lines
machinery
macro
mechanism
metal
metallic
muddy
nobody
part
pier
plant
power
ropes
spool
spools
steel
strength
technology
thick
tool
transportation
welding
wheel
winch
wire
work