| http://www.w3.org/ns/prov#value | - The first material is comprised of at least one of copper, copper alloys, stainless steel, aluminum, aluminum alloys, copper/chromium, aluminum/copper, or other alloys thereof; the second material is comprised of at least one of aluminum, aluminum alloys, molybdenum, molybdenum alloys, copper, copper alloys, tungsten, titanium, tantalum, any other non-magnetic materials or alloys, or any other non
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