About: http://webisa.webdatacommons.org/101621257

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	Corrosion of steel is an electrochemical reaction that requires the presence of water (H2O), oxygen (O2) and ions such as chloride ions (Cl??), all of which exist in the atmosphere.
http://www.w3.org/ns/prov#wasQuotedFrom	totalmateria.com