About: http://webisa.webdatacommons.org/227938480

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	Although the plate 90 may be made from various materials having differing chemistries, it should be appreciated that a relatively hard material, such as a metal or alloy, including iron or steel, may be preferred.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com