About: http://webisa.webdatacommons.org/167081035

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 providing the covers 90 with a function of a support member, the covers 90 are required to have a high strength and thus are preferably formed from a material such as stainless steel or a steel sheet.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com