DPWH Standard Specification for Item 615 - Noise Barrier. Category: Department OrderSub Category: construction-materialsSeries: 2017No: 146File: DO_146_s2017.pdfDate: Friday, December 15, 2017Tags: DPWH Standard Specification for Item 615 - Noise Barrier BRS Materials 146Bureaus and Services: Bureau of Research and Standards Read more about DPWH Standard Specification for Item 615 - Noise Barrier.
