About: http://webisa.webdatacommons.org/110895124

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 top and bottom facing sheets may be fabricated from sheets of carbon steel, stainless steel, aluminum, or other suitable material typically approximately 3/16 to 1/2 inch in thickness.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk