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Clamping tool for milling vertical face and bottom face of mine car collision head
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Shaft part center hole drilling device
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Safety device for gas exploitation
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Drilling machine with all-dimensional angle presetting function and automatic adjusting function
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Drilling and blasting rock roadway anchor net cable spraying construction process
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Long wall mining 120 method
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Coal mine floor drainage roadway cross-layer pore-forming hydraulic punching and cave-building construction method
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Short-detection blowout-preventing hole equipment
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Sliding top beam forepoling
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novel process for temporary support of roadway
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A kind of mining survey portable laser instrument
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Hand-held grease gun Fast Filling ancillary equipment
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Moving device before belt conveyor tail
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A kind of milling machine is clamped with angle
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A kind of mining Anti-skid adhesive tape processing unit (plant)
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A kind of mining steel repair machine
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High-voltage switch gear plum blossom static contact snap installs combination tool
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A kind of ultra-thin rock pillar heavy equipment crosses lane method
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Coal seam bottom water bursting hazard assessment calculation method
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Without support advance support repeatedly, carry complete set of equipments and method for carrying
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