<http://webisa.webdatacommons.org/256699525>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/256699525>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<oilandgaspages.com> .
<http://webisa.webdatacommons.org/prov/131867252>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/256699525> .
<http://webisa.webdatacommons.org/256699525>	<http://www.w3.org/ns/prov#value>	"Products are widely used in petroleum, chemical, metallurgical, pharmaceutical, power, environmental protection, food construction, shipbuilding and other fields." .
<http://webisa.webdatacommons.org/prov/473456683>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/256699525> .
<http://webisa.webdatacommons.org/prov/362927900>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/256699525> .
<http://webisa.webdatacommons.org/prov/67856305>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/256699525> .