<http://webisa.webdatacommons.org/340144672>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/233763967>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/340144672> .
<http://webisa.webdatacommons.org/prov/109887866>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/340144672> .
<http://webisa.webdatacommons.org/340144672>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<globalspec.com> .
<http://webisa.webdatacommons.org/340144672>	<http://www.w3.org/ns/prov#value>	"Polymers such as polyvinyl chloride (PVC), polyethylene, and polypropylene are favored as non-structural components in towers where the water???s corrosion potential inhibits the use of metals." .