Designation of Engr. MANUEL U. ZAMBRANO as District Engineer of Davao City Engineering District, Region XI. Category: Department OrderSub Category: areas-responsibilities-authority-designationSeries: 1999No: 64File: DO_064_S1999.pdfDate: Thursday, April 8, 1999Tags: Designation MANUEL ZAMBRANO District Engineer Davao City XI 064Region: Region XI Read more about Designation of Engr. MANUEL U. ZAMBRANO as District Engineer of Davao City Engineering District, Region XI.