| http://www.w3.org/ns/prov#value | - In order to improve the strength, elongation, high temperature strength, corrosion resistance, and the like of an article in its final shape, elements, such as zinc (Zn), manganese (Mn), silicon (Si), copper (Cu), silver (Ag), yttrium (Y), and zirconium (Zr), may be added.
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