PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The range of application for now includes fields of Iron and steel, nonferrous metals, chemicals, electric power, machinery, building materials, household and other fields.
http://www.w3.org/ns/prov#wasQuotedFrom
  • chinaexhibition.com