About: http://webisa.webdatacommons.org/228337289

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 the prior art as discussed above, the replacement of a single roller is a cumbersome and costly procedure, especially in cases where the failure of one single roller may cause the entire conveying structure to be inoperable.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es