PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Calcification is the biggest problem not only for plate heat exchangers but also it is for pipes, valves and even for all fitment.
http://www.w3.org/ns/prov#wasQuotedFrom
  • plateheatexchanger.org