PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I used their 2 layer 5cm x 5cm service and got 10 PCBs for less than $15, including shipping to the United States.
http://www.w3.org/ns/prov#wasQuotedFrom
  • electronics-lab.com