About: http://webisa.webdatacommons.org/444627072

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 pellets or microspheres are preferably formed from a high atomic number metal or alloy such as aluminum, iridium, platinum, gold, tantalum, tungsten, lead and alloys of one or more of these or similar metals.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca