现行 HB 404-1971
塑料夹具用内六角紧定螺钉 塑料夹具用内六角紧定螺钉
发布日期：1973-01-01
实施日期：1974-01-01
分类信息
发布单位或类别： 中国 行业标准-航空
CCS分类：
ICS分类：
标准简介
相似标准/计划/法规
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塑料螺钉夹具内六角

最后更新时间 2025-08-27