About: http://webisa.webdatacommons.org/147741815

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	These materials could result from environmental contamination or from depassivating salts such as chlorides and sulfates.
http://www.w3.org/ns/prov#wasQuotedFrom	metalfinishing.com