<http://webisa.webdatacommons.org/252356125>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.fr> .
<http://webisa.webdatacommons.org/prov/455912810>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/252356125> .
<http://webisa.webdatacommons.org/252356125>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/252356125>	<http://www.w3.org/ns/prov#value>	"The etching treatment of these materials is performed by solution including hydrochloric acid." .