32nd Upgrading of Rank of Accredited DPWH Materials Engineers. Category: Department OrderSub Category: human-resourceSeries: 2018No: 142File: DO_142_s2018.pdfDate: Wednesday, September 26, 2018Tags: 32nd Upgrading of Rank of Accredited DPWH Materials EngineersBRS human 142Bureaus and Services: Bureau of Research and Standards Read more about 32nd Upgrading of Rank of Accredited DPWH Materials Engineers.