About: http://webisa.webdatacommons.org/425228048

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	Alternatively, the exterior surface of rollers 30 can be of other suitable materials such as steel, aluminum or rigid polymers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com