Category: Department OrderSub Category: construction-materialsSeries: 2017No: 147File: DO_147_s2017.pdfDate: Friday, December 15, 2017Tags: Amendments to DPWH Standard Specification for Item 706 - ConcreteClayPlastic and Fiber Pipe (Item 706.14.2 Structure Wall Pipe - High Density Polyethylene Pipe) BRS materials 147Bureaus and Services: Bureau of Research and Standards