About: http://webisa.webdatacommons.org/18720341

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	Although metal is the preferred material for the sleeve and insert, other materials such as plastic could be used, if it were of structural quality to sustain the heavy weight of the concrete.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com