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A kind of mining self-rescuer
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A kind of drill head using mechanical gripper
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A kind of mechanical gripper
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Amplitude variation rolling friction drilling machine component
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Variable-amplitude bearing device of drilling machine
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A kind of underground drill rig with adjustable jib lubbing mechanism
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Variable-amplitude bearing device of drilling machine
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A kind of underground drill rig of the adjustable angle that punches on a large scale
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A kind of small size coal mine down-hole tunnel track-mounted drill
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All-dimensional deep hole drilling machine
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A kind of crawler-type tunnel drilling rig
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A kind of crawler-type tunnel drilling rig using mechanical gripper
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Self-rotation type large-turning-spraying dust fall spraying frame
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Isolation type chemical oxygen self rescuer
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Chemical oxygen self-rescuer
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Integrated miniature anti-explosion miner lamp
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Anti-explosion mine lamp
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