航空航天用带沉头窝的MJ螺纹减小型封闭角形托板自锁螺母
Reduced series fixed closed corner anchor self-locking nuts with counterbore and MJ threads for aerospace
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发布于：2025-08-29
实施于：2026-06-01
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Reduced series fixed closed corner anchor self-locking nuts with counterbore and MJ threads for aerospace