Branch Address - Toledo 1206 Oak Street Toledo 43605 P: 419-214-1121 Get Directions Local Contacts Mr. Ali Abou-Arab Regional Manager Phone: 419-214-1121 Cell: 419-704-0335 ali.abou-arab@gdi.com Ms. Sandra Gronau Vice President of Human Resources & Administration Phone: 734-637-3236 sandra.gronau@gdi.com