34th Upgrading of Rank of Accredited DPWH Materials Engineers. Category: Department OrderSub Category: human-resourceSeries: 2018No: 165File: DO_165_s2018.pdfDate: Monday, November 19, 2018Tags: 34th Upgrading of Rank of Accredited DPWH Materials EngineersBRS 165Bureaus and Services: Bureau of Research and Standards Read more about 34th Upgrading of Rank of Accredited DPWH Materials Engineers.