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垂直向下不低于600米 KY-600型全液压坑道探矿钻机75口径垂直向下绳索取芯探矿钻机工作现场视频案例绳索取芯现场

Chifeng Jiexing Drilling Machine specializes in producing fully hydraulic tunnel drilling machines

Release time：2023-07-05

Number of views: 1720(order)

垂直向下不低于600米 KY-600型全液压坑道探矿钻机75口径垂直向下绳索取芯探矿钻机工作现场视频案例绳索取芯现场

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