About: http://webisa.webdatacommons.org/139765586

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	At best you can say they take care of some sealing issues, but it is mostly with orings that are metric.Also because of the o-ring composition, you might have re-break in your marker even longer.
http://www.w3.org/ns/prov#wasQuotedFrom	techpb.com