About: http://webisa.webdatacommons.org/338166970

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 polishing head has sucking structures such as suction grooves and a through-hole.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com