About: http://webisa.webdatacommons.org/238908501

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	Razor blades have also been manufactured from other types of materials, including ceramic, glass or other vitreous materials.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com