About: http://webisa.webdatacommons.org/407463529

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 composition according to the invention may furthermore contain less than 1%, preferably less than 0.5%, of coloring agents other than iron, cobalt and nickel, chosen from copper oxide, chromium oxide, titanium oxid
http://www.w3.org/ns/prov#wasQuotedFrom	google.com