About: http://webisa.webdatacommons.org/273131419

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	The alloy mainly composed of aluminum in the fourth reflective layer (9) preferably contains at least one of titanium, chromium, zinc, manganese, and copper, and the ratio of aluminum in the composition is 90 percent by weight or more.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com