About: http://webisa.webdatacommons.org/268289240

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	If desirable, the polymer melt in the extruder may be protected from oxygen by blanketing it with steam or an inert gas such as carbon dioxide, nitrogen, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au