About: http://webisa.webdatacommons.org/287699455

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	The material of the blade is preferably a hard metal which is produced by the combination of tungsten carbide, cobalt, titanium carbide, tantalum carbide and the like, or ceramics such as zirconia.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com