<http://webisa.webdatacommons.org/prov/463207915>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/194892065> .
<http://webisa.webdatacommons.org/194892065>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/194892065>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/194892065>	<http://www.w3.org/ns/prov#value>	"Polytetra fluoroethylene (melting point 327??? C.), because of its high resistance to chemicals, is useful especially in applications that the first protective material is located outside of the second protective material." .