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<http://webisa.webdatacommons.org/142480248>	<http://www.w3.org/ns/prov#value>	"Tungsten Carbide is the hardest metal and can only be cut by diamond and scratch resistance in its original form." .
<http://webisa.webdatacommons.org/142480248>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<bizrate.com> .