About: http://webisa.webdatacommons.org/16885474

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	In an exemplary embodiment, the inorganic hardening agents are present at concentrations of up to about 50% by weight, particularly about 5% to about 25% by weight, and more particularly about 5% to about 15% by weight.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com