_:nb47a3777b5ec435f80c38aad472ea57dxb5
<http://schema.org/valueRequired>
"true"^^<http://www.w3.org/2001/XMLSchema#boolean>
<https://rettificalra.it/rettifica-diametri-interni-ed-esterni/rettifica-diametro-interno-ingranaggi/>