Photo de stock - Female analytical chemist, gray hair, 50-55 years, filling a chemical mixture of water and Potassium ferrocyanide into a glass container, Wattens, Innsbruck Land, Tyrol, Austria

Photo de stock: Female analytical chemist, gray hair, 50-55 years, filling a chemical mixture of water and Potassium ferrocyanide into a glass container, Wattens.

Mots-clés utilisés