About: http://webisa.webdatacommons.org/383128448

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	In another aspect, the frit is substantially free of heavy metals, such as lead and cadmium.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com