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开岩利器悬臂式掘进机，矿山机械中的航空母舰，隧道挖掘少不了它
你见过这种机械设备吗？它就是悬臂式掘进机，号称矿山机械中的航空母舰。隧道开挖用上它，那效率真是飞一般的快。这种大炮头，大吨位，截割强度可达150兆帕，面对硬岩势如破竹，是隧道开挖的好利器！
铣挖机/纵向铣挖机27/69
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