About: http://webisa.webdatacommons.org/86001674

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 walls of the ion source 26 are comprised of aluminum or other suitable material, and may be lined with graphite or other suitable material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com