PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This seven-part series written by Rob Haddock, president of the Metal Roof Advisory Group, Ltd., offers essential, detailed information on metal roofing including the history and material types, appropriate coatings and paint systems, induced finishes, profiles and profiling equipment, metal panel attachment, and the mounting of rooftop equipment.
http://www.w3.org/ns/prov#wasQuotedFrom
  • metalconstruction.org