About: http://webisa.webdatacommons.org/269629338

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	Description: Reduced to its barest elements, a steam heating system consists of a boiler to convert water to steam, piping to conduct the steam to where it is to be used, a coil or other surface for
http://www.w3.org/ns/prov#wasQuotedFrom	globalspec.com