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  • Certified Management System

    • Certified Persons

      ISO 9001

    • Certificate Holder

      Dr. Ludwig GmbH Werk Concordia

    • Test Mark Number


    The certificate holder's Management System corresponds to standard ISO 9001:2008.

    Certificate scope

    • ISO 9001

      Crushing, processing and selling of mineral raw materials, development, manufacturing, processing and selling of refactory material, trading of refractory and ceramic raw materials and commodities

    Certificate for this Management System

    Contact to the certificate holder

    Dr. Ludwig GmbH
    Werk Concordia
    Industriegebiet Rohr
    56235 Ransbach-Baumbach