About: http://webisa.webdatacommons.org/419260362

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	Due to the significant amount pressure generated by foaming process, a C-clamp or other device may be used to hold the top metal plate and mold together to prevent any leakage of mixture.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com