About: http://webisa.webdatacommons.org/187602384

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: A protective coating is formed on all metal surfaces, safe-guarding against acidity/alkalinity, hardness, chloride turbulence and other factors which effect the corrosion that leads to rusting out of water equipment and pipes.
http://www.w3.org/ns/prov#wasQuotedFrom	hardwater.net