About: http://webisa.webdatacommons.org/238437609

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	We are now producing telescopes, microscopes, magnifiers, infrared lenses, and all kinds of lenses of non-spherical surface, spherical surface and plastics, which have been granted many patents.
http://www.w3.org/ns/prov#wasQuotedFrom	alibaba.com