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Ingredients: aluminum Al3.9-4.3, copper Cu0.10 (max), magnesium Mg0.01-0.02, iron Fe (max) 0.035, lead Pb (max) 0.0030, cadmium Cd (max) 0.0020, tin Sn (max) 0.0010, nickel Ni (max) 0.005-0.020, zinc: residual