PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Our company is a professional manufacturer and researcher of fusion splicers and OTDR (Optical Time Domain Reflectometry).
http://www.w3.org/ns/prov#wasQuotedFrom
  • alibaba.com