About: http://webisa.webdatacommons.org/277150973

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	Also it does not require heavy metals such as chromium, cobalt, nickel, copper, zinc and iron, and gives less burden to the environment in comparison with the conventional charge control agent.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au