About: http://webisa.webdatacommons.org/314622629

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	In one embodiment, the strengthened glass sheet is an ion exchanged glass having a Vickers median/radial crack initiation threshold of at least 10 kilogram force (kgf).
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com