About: http://webisa.webdatacommons.org/442681944

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	A proximal end of the through hole is an opening in the inner wall surface and a distal end of the through hole is an opening in the outer wall surface.
http://www.w3.org/ns/prov#wasQuotedFrom	sumobrain.com