About: http://webisa.webdatacommons.org/255986786

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	Grinding beads made of plastic, glass, ceramics such as aluminum oxide and zirconium oxide, steel, and tungsten carbide are also available.
http://www.w3.org/ns/prov#wasQuotedFrom	pharmtech.com