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Anhui Tongguan Machinery and Technology Co.,ltd
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Hard Rock Underground Boring Machine , High Torque Reverse Circulation Drilling

Anhui Tongguan Machinery and Technology Co.,ltd
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Hard Rock Underground Boring Machine , High Torque Reverse Circulation Drilling

Hard Rock Underground Boring Machine , High Torque Reverse Circulation Drilling

AT-2000 Opencast Raise-boring Machine Raise Boring Rig Reverse Counterboring Main Features: 1. It adopts two-column and two-cylinder structure, which has good overall rigidity, high guiding precision ...

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raise boring machine

      

hard rock boring machine

      
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