| http://www.w3.org/ns/prov#value | - For example, a metal such as gold (Au), silver (Ag), copper (Cu), platinum (Pt), palladium (Pd), nickel (Ni), chromium (Cr), iridium (Ir), tungsten (W), molybdenum (Mo), silicon (Si) or zinc (Zn) may be used, or a multilayer structure or alloy including at least two of these metals may be used.
|
