About: http://webisa.webdatacommons.org/409520280

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	The engineer refers to these as high-strength steels.ConcreteConcrete is an artificial stone made from a mixture of water, sand, gravel, and a binder such as cement.
http://www.w3.org/ns/prov#wasQuotedFrom	britannica.com