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<http://webisa.webdatacommons.org/prov/98962645>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/314880343> .
<http://webisa.webdatacommons.org/314880343>	<http://www.w3.org/ns/prov#value>	"Other materials, such as copper, have been found to leave contaminates in the weld pool and may adhere to the welded area of the coil making removal of the coil from the mandrel difficult." .
<http://webisa.webdatacommons.org/314880343>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.fr> .