About: http://webisa.webdatacommons.org/232797873

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	It is preferable that the particle is a hollow spherical particle such as a cenosphere or similar product.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com