GB/T 31439.1-2025

Corrugated sheet steel beams for road guardrail—Part 1: W-beam guardrail

STANDARD published on 29.8.2025

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The information about the standard:

Designation standards: GB/T 31439.1-2025
Note: Execute Date: march 2026
Publication date standards: 29.8.2025
Country: Chinese technical standard
Category: Technical standards GB