PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In order to obtain surfaces sufficiently rough for establishing adequate mechanical bonding interactions it is often required to additionally roughen respective surfaces, particularly when coating metal surfaces.Mechanical treatment techniques for additionally roughening surfaces, as for example sandblasting or grit blasting, are known.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com