About: http://webisa.webdatacommons.org/6604337

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 such methods, the surfaces are roughened, such as by machining is used prior to grafting, and an acid, preferably a mineral acid, is added during the grafting process, is also provided.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca