About: http://webisa.webdatacommons.org/102012901

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	In the construction and repair of wells, such as oil, gas and water wells, various operations featuring the use of hydraulic cement compositions are performed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es