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一种上向圆柱型深孔自动对孔方法及井下炸药现场混装车

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  • Release time:2023-12-23

  • Patent description:邓宏贵，刘阳，曾宪孝等

  • Type of Patent:Invent

  • State of Patent:Authorized patents

  • Authorization number:ZL202110252832.2

  • Service Invention or Not:no

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