LIBROS DEL AUTOR: rudolf gregorius

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  • Mineral Waxes
    Rudolf Gregorius / Charles Salter
    Mineral Waxes: Their Preparation And Uses (1908) is a book written by Rudolf Gregorius that explores the various types of mineral waxes and their uses. The book provides a comprehensive overview of the preparation and production methods of mineral waxes, including the refining process and the use of different chemicals in the process. The author also discusses the various appli...
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    34,35 €