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tunnel boring machines making a name in

Meet our giant tunnelling machines Digging the new tunnels was a 24-hour a day job, 7 days a week. ... Tunnel boring machines making a name in the Middle East. ... A tunnel boring machine ... instead of vertical drilling ahead of the machine. Get Quote ...

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road header tunnel road header tunnel,Technical Information

A roadheader, also called a boom-type roadheader, road header machine, road header or just header machine, is a piece of excavating equipment consisting of a boom-mounted cutting head, a loading device usually involving a conveyor, ...

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