About: http://webisa.webdatacommons.org/190049416

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	Mechanical valves are made up of synthetic materials such as polymers, ceramics and metals.
http://www.w3.org/ns/prov#wasQuotedFrom	businesswire.com