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High Strength Φ69/Φ75 Drilling Rod For Mining Drilling Gas Water Drill
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Alloy Steel Rock Drill Rods R25 / R32 / T38 / T45 / T51 With Length Customization
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Made In China Mining Rock Dth Drilling Rod 2 3/8 2-7/8 3 1/2 Api Reg Dth Rod Drill Pipe Dth Mining Drill Pipe
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Friction Welding Water Well Drill Rods With High Wear Resistance
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Crawler Mounted Core Drilling Rod For Geology Investigation Q345 Cr Steel Materials
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Geological Waterwell Drilling Tools Rock Drill Rods High Wear - Resistance
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High Strength Carbide Thread Rock Drill Rods H22*108 Tungsten Hole Diameter
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Tungsten Carbide Drill Rod , Small Hole Drill Extension Rod Shank H22 x 108mm
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76mm/89mm /114mm/127mm/140mm Drill Pipe With API REG Standard
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R25 R28 R32 Bench Rock Drilling Threaded Drill Rod 40CR Steel Material
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