About: http://webisa.webdatacommons.org/227367729

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	Hydraulic cement compositions are used in primary cementing operations whereby casing and other pipe strings are cemented in well bores.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr