About: http://webisa.webdatacommons.org/38874344

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 first step is rough grinding for curve generation using a tool having a preformed, curved surface which is plated or impregnated with diamond, tungsten carbide, or other super-hard particles of the desired grit size.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr