About: http://webisa.webdatacommons.org/85695792

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 oxidation layer is then removed from selected areas by etching with a suitable etchant, such as a mixture of nitric and hydrofluoric acids.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au