About: http://webisa.webdatacommons.org/227653497

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	It is preferred that the ink-holding side walls 1a and 1b are composed of a rigid material such as metal or ceramics.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com