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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 31439.2-2015 |
Guardrail—Part 2: Corrugated sheet steel thrie-beams for road guardrail 波形梁钢护栏 第2部分：三波形梁钢护栏 |
China National Standards Guardrail—Part |
 English PDF |
| GB/T 31439.1-2015 |
Guardrail—Part 1: Corrugated sheet steel W-beams for road guardrail 波形梁钢护栏 第1部分：两波形梁钢护栏 |
China National Standards Guardrail—Part |
English PDF |
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