1. AGRO Vertriebsgesellschaft GmbH, Germany. 2. System Happel GmbH, Germany. 3. Huweca GmbH, Germany. 4. Kuhn GmbH, Germany. 5. Mea Meisinger GmbH, Germany. 6. J. Niehuis GmbH, Germany. 7. Tewe Elektronik GmbH, Germany.