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Alkali metals keychain has 4 small ampoules of Na
Krypton discharge ampoule (Kr)
Rubidium metal (Rb)
The keychain contains helium gas inside ampoule
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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