35th Upgrading of Rank of Accredited DPWH Materials Engineers. Category: Department OrderSub Category: human-resourceSeries: 2018No: 177File: DO_177_s2018.pdfDate: Friday, December 28, 2018Tags: 35th Upgrading of Rank of Accredited DPWH Materials EngineersBRS human 177Bureaus and Services: Bureau of Research and Standards Read more about 35th Upgrading of Rank of Accredited DPWH Materials Engineers.