About: http://webisa.webdatacommons.org/351239126

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	Beside the traditional problems from pure Copper/Zinc alloys -- that is, Brass-- , I worry particularly about the fact that since the industrial revolution lead has been and is very often added to brass to improve it is machinability.
http://www.w3.org/ns/prov#wasQuotedFrom	finishing.com