About: http://webisa.webdatacommons.org/33549956

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	Rigid Rule Rules or measuring tools made of thicker gages of steel, hardened steel, stainless steel, plastic, wood, or other materials that result in increased stiffness.
http://www.w3.org/ns/prov#wasQuotedFrom	globalspec.com