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26 天
GB/T 44847-2024 英文版/翻译版 重型机械 锻件设计要求
GB/T 321 优先数和优先数系 GB/T 1182 产品几何技术规范(GPS) 几何公差 形状、方向、位置和跳动公差标注 GB/T 4458.4 机械制图 尺寸注法 GB/T 4458.5 机械制图 尺寸公差与配合注法 GB/T 8541 锻压术语 GB/T 16675.2 技术制图 简化表示法 第2部分:尺寸注法 GB/T 37400.8-2019 重型机械 ...
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