About: http://webisa.webdatacommons.org/260973176

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	For example, the outer surface can be roughened by mechanical means including grinding, sandblasting, or Laser-ablation, or chemical means including etching and leaching.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr