About: http://webisa.webdatacommons.org/176488508

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	To be usable, iron does not need alloying with other metals, and the demands are mainly the fuel and labour needed to smelt or roast the ore.
http://www.w3.org/ns/prov#wasQuotedFrom	all-art.org