About: http://webisa.webdatacommons.org/311336656

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	Aggregates and other materials used in the concrete formulation are subject to detailed petrographic examinations and related tests to ensure a contamination free mix.
http://www.w3.org/ns/prov#wasQuotedFrom	appspy.com