About: http://webisa.webdatacommons.org/414522586

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	It covers a detailed glossary of terminology, explains construction of various types of firetube and watertube boilers, pumps, valves, burners, etc..
http://www.w3.org/ns/prov#wasQuotedFrom	mikebrownsolutions.com