About: http://webisa.webdatacommons.org/68373019

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	Phosphorus, lead, zinc, and other metals may be added for special purposes.
http://www.w3.org/ns/prov#wasQuotedFrom	russianbells.com