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Roof Bolter for coal mine MQT-1302014-08-28 17:03:21 |
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Bolter Miner Roadheader with 4 bolters for roof supporting and tunneling2021-11-24 09:15:43 |
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MQT-130 Pneumatic Roof Bolter for bolting in the underground coal mine2017-08-28 10:00:24 |
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Automatic roof botler for coal mine2020-06-15 15:12:15 |