About: http://webisa.webdatacommons.org/339528620

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	Issues such as hydrogen permeation and extremely high chemical purity requirements on the entire supply and return system had previously been of only minor significance.
http://www.w3.org/ns/prov#wasQuotedFrom	issuu.com