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Elektrolysiert Bilder ❘ Science Photo Library

Potassium Iodide & Phenolphthalein, Electrolyzed
12630282 - Potassium Iodide & Phenolphthalein, Electrolyzed
High purity gold
11902720 - High purity gold
High purity gold
11902719 - High purity gold
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