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Alkali metals keychain has 4 small ampoules of Na
100 Torr pressure
Rhenium keychain has rhenium plate with high purity 99
Krypton discharge ampoule (Kr)
Rubidium metal (Rb)
Noble metals keychain 20x40 mm, Pd, Ag, Pt, Au. germanium Alkali metals keychain has 4Noble metals keychain has 4 metal foils of Pd, Ag, Pt, Au with high purity 99. 9%. The keychain is made of transparent urethane. The dimensions are 8x20x40 mm. It has a steel chain and a ring.
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