About: http://webisa.webdatacommons.org/257669144

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	Relevant parts required for guard rails: post, spacer (C, U and Sigma types etc) and fasteners 6.
http://www.w3.org/ns/prov#wasQuotedFrom	klsteel.com