金属産業
機器
ball bearing
below
cable
circle
closeup
complexity
construction
crane
dirty
electric motor
electricity
elevator
engine
equipment
factory
freight elevator
fuel and power generation
heavy
ideas
industrial equipment
industry
iron
large
large build
low angle view
machine part
metal
mode of transport
motivation
nobody
old
oversized
overweight
part of
picking up
power
power supply
pulley
rusty
steel
steel cable
strength
transportation
turning
vibrant color
vitality
wheel
wire