http://www.w3.org/ns/prov#value | - Specific materials for the protective film include metals such as In, Sn, Pb, Au, Cu, Ag and Al, metal oxides such as MgO, SiO.sub.2 and TiO.sub.2 and resins such as a polyethylene resin, polyurea resin and polyimide resin. When a protective
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