About: http://webisa.webdatacommons.org/345378558

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	by immersing the board in a 3% solution of sodium hydroxide in water at 50.degree. C. for 2 minutes. The result is a high quality printed circuit board.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com