About: http://webisa.webdatacommons.org/290032041

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	Etching is a process in which an acid is used to cut around protected parts of metal leaving behind a raised image.
http://www.w3.org/ns/prov#wasQuotedFrom	sparrowcollective.com