http://www.w3.org/ns/prov#value | - Owing to this structure, the location of the magnetic layer 3 can readily be detected from the outside while the layer 3 per se is hidden, and trouble such as excessive wear of the magnetic head or magnetic card can be avoided because the outermost layer (the protective layer 6 in this example) at the portion where the magnetic layer 3 and other layers are provided lies in the same plane as the su
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