About: http://webisa.webdatacommons.org/35630485

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	Bulkheads are still made from titanium, aluminum or other conventional metals and alloys because of the tremendous thermal and pressure demands.
http://www.w3.org/ns/prov#wasQuotedFrom	astronomycafe.net