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2024
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Invention
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Continuous mining equipment suitable for hard rock longwall, and construction method. The present... |
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Invention
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Tensile-fracturing hard-rock-breaking boring machine and construction method. A tensile-fracturin... |
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Invention
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Apparatus for independent action of double-support-arm swing cylinder and pitch cylinder achievin... |
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2013
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Invention
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Shearer dual-drum cutting part. Disclosed is a shearer dual-drum cutting part, the cutting drums ... |
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Invention
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Four-drum shearer using dual-drum cutting parts. A four-drum shearer using dual-drum cutting part... |
