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大型曲面箱底旋压成形 工艺规范 Spinning process of large-curved tank bottom— Technological specification ICS 25.020 CCS J 32 中华人民共和国国家标准 GB/T 44920—2024 2024-11-2 8发布 2025-06-0 1实施 国家市场监督管理总局 国家标准化管理委员会 发 布 目 次 前言 ····································································································· Ⅲ 1 范围 ·································································································· 1 2 规范性引用文件 ······················································································ 1 3 术语和定义 ··························································································· 1 4 设备要求 ······························································································ 2 5 毛坯设计 ······························································································ 2 6 工装设计 ······························································································ 3 7 工艺过程 ······························································································ 5 8 检验与记录 ··························································································· 8 GB/T 44920—2024 Ⅰ
GB-T 44920-2024 大型曲面箱底旋压成形 工艺规范
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2025-02-19 13:25:46
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