| http://www.w3.org/ns/prov#value | - Although the present invention is described with regard to the case where the metal reduced by the reducing agent is a cobalt-nickel alloy, the invention is also applicable not only to the cobalt-nickel alloy but also to any metal units of cobalt, nickel and iron and alloys formed by these three kinds of metals or other metals which form magnetic alloys with these three kinds of metals.
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