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Kewei Liu
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[1]一种上向炮孔混装炸药装填装置, 授权日期:2022-03-08, 授权号:ZL 2021 1 0015493.6.
[2]一种炮孔封堵装置及方法, 授权日期:2022-02-15, 授权号:ZL 2020 1 1405085.3.
[3]一种爆破防冲孔装置炮孔堵塞方法, 授权日期:2022-05-06, 授权号:ZL 2021 1 0015720.5.
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