<https://www.phywe.com/physics/mechanics/dynamics-motion/pulley-movable-dia-40mm-w-hook_653_1584/1584>
<http://schema.org/disambiguatingDescription>
"Pulley,movable,dia.40mm,w.hook"
<https://www.phywe.com/physics/mechanics/dynamics-motion/pulley-movable-dia-40mm-w-hook_653_1584/>