DPWH Standard Specification for Item 419 - Corrugated Steel Plate (CSP). Category: Department OrderSub Category: construction-materialsSeries: 2018No: 40File: DO_040_s2018.pdfDate: Friday, March 16, 2018Tags: DPWH Standard Specification for Item 419 - Corrugated Steel Plate CSPmaterials BRS 040Bureaus and Services: Bureau of Research and Standards Read more about DPWH Standard Specification for Item 419 - Corrugated Steel Plate (CSP).