About: http://webisa.webdatacommons.org/51675284

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	These PR releases and advertisements list everything the substrate does NOT have: ???do not contain any heavy metals such as chromium or lead.???
http://www.w3.org/ns/prov#wasQuotedFrom	large-format-printers.org