Gebrüder Wollenhaupt GmbH Organisation and Principles We are committed to a quality management as per ISO 9001, therefore our organisation corresponds to this high standard. The three manager of Gebrüber Wollenhaupt have clearly defined fields of responsibility. Manager Jörg Wollenhaupt, Dirk Wollenhaupt, Dr. Dirk Schliephake Fields of Responsibility click here to print PDF file Our principles express our thinking and doing, reflecting the natural contact with our customers and suppliers as well as with our staff. Company Principles click here to print PDF file Management Principles click here to print PDF file