Rotating gears in mechanical device
Palabras clave
gear,
industrial,
industry,
technology,
valva,
machine,
steel,
device,
gear,
metal,
wheel,
iron,
cog,
factory,
equipment,
engineering,
mechanism,
engine,
power,
teeth,
mechanical,
handle,
macro,
machinery,
connection,
cog,
closeup,
old
