现行 HB 4351-1989
扁头螺钉 扁头螺钉
发布日期:1989-07-12
实施日期:1989-12-01
分类信息
发布单位或类别: 中国 行业标准-航空
CCS分类: J45机械 - 工艺装备 - 组合卡具
ICS分类:
标准简介
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最后更新时间 2025-08-28