About: http://webisa.webdatacommons.org/32901564

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	Even if the grease provides relatively low friction and enables lowering of the tool by its own weigth, this method requires large investments for equipments and materials, in particular grease.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es