About: http://webisa.webdatacommons.org/409865367

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	When materials other than steel are used, indicate AL for aluminum or WD for wood.
http://www.w3.org/ns/prov#wasQuotedFrom	steeldoor.org