About: http://webisa.webdatacommons.org/339453042

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	Diffusion methods modify the chemical composition of the surface with hardening species such as carbon, nitrogen, or boron.
http://www.w3.org/ns/prov#wasQuotedFrom	totalmateria.com