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一种用于定向聚能钻孔爆破的药卷定位炮棍装置

Release Time:2025-10-16
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Title:
一种用于定向聚能钻孔爆破的药卷定位炮棍装置
Disigner of the Invention:
孙清
Type of Patent:
Invent
Application Number:
2019110781645
Service Invention or Not:
No
Application Date:
2019-11-06
Date:
2025-10-16