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T38 190mm Long Hole Drilling Stone Drilling Drill Threaded Coupling2022-03-15 16:18:29 |
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Thread Crossover Drill Coupling High Strength Alloy Steel For Tunneling2022-03-15 16:18:30 |
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7° 11° 12° Tungsten Carbide Quarry Mining Rock Drilling Taper Button Bits2022-09-28 10:33:33 |
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Carbon Steel Rock Tools Drilling Equipments Hex Rods MF Rod For T382022-03-15 16:25:36 |
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Tunneling Length 8.25 Inch T45 210mm Threaded Couplings2022-03-15 16:18:29 |
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T51 225-235mm Underground Mining Threaded Drill pipe Coupling Sleeves2022-03-15 16:18:29 |