作废 QJ 297-1978
120°半沉头十字槽螺钉 120°半沉头十字槽螺钉
发布日期：1980-07-01
实施日期：1980-07-01
分类信息
发布单位或类别： 中国 行业标准-航天
CCS分类：
ICS分类：
标准简介
相似标准/计划/法规
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最后更新时间 2025-08-27