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一种超大采高液压支架
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Movable roof support and bolter system
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Mine roof support means
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Method and apparatus for mining and supporting the mine roof
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Roof support in mines
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Apparatus for controlling the position of a mineral mining machine
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Movable roof support and bolter system
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Self-advancing mine roof supports
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Mine roof supports
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Roof support unit
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Mineral mining installations
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Устройство дл монтажа секций механизированной крепи
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Roof supports for mine workings
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一种单轨液压锚杆钻车自动调节平台
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Roof supports for mine workings
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Способ проведения подготовительной горной выработки и механизированная крепь для его осуществления
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Mine roof supports
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Walking roof support trestle
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(ru)
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Агрегат для крутых пластов
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Conveyor guiding and anchoring props for mining installations
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Self-traveling propping apparatus
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Механизированный комплекс дл отработки мощных крутых угольных пластов
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Conveying apparatus for use in mineral mining
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