About: http://webisa.webdatacommons.org/175841704

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	As the technology for manufacturing composite polyamide, cellulose acetate and other types of membranes has progressed, new fields of filtration, such as ultrafiltration, or nanofiltration, and microfiltration have been created.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com