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| JT/T 457-2007 Thrie-beam guardrail for highway (English Version) |
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Detail of JT/T 457-2007
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Introduction of JT/T 457-2007
本标准规定了三波形梁钢护栏产品的组成、外形尺寸及允许偏差、技术要求、试验方法、检验规则及标志、包装、运输和质量证明书。
本标准适用于公路用三波形梁钢护栏，城市道路用三波形梁钢护栏可参照使用。
Contents of JT/T 457-2007