About: http://webisa.webdatacommons.org/21485899

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 first block 48 is formed from a generally rigid material such as steel, aluminum, copper, Santoprene??? 103-50, neoprene, polyvinyl chloride, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com