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| JT/T 819-2023 (English Version) |
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Detail of JT/T 819-2023
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Introduction of JT/T 819-2023
本标准规定了公路工程水泥混凝土用机制砂的分类与规格、技术要求、试验方法、检验规则，以及标志、运输和储存等要求。
本标准适用于公路工程水泥混凝土及其制品用机制砂的生产、检验和使用。
Contents of JT/T 819-2023