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CIR65 Low Air Pressure DTH HAMMER para sa DTH drill...
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Mataas na presyon ng hangin JD125A DTH hammer rock drill ...
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11 Degree 38mm Tapered Rock Drill Button Bit para...
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160x3000mm Pinakamabentang PVC Water Well Casing ...
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6 Inch Iadc 127 Water Well Steel Tooth Tricone Bit
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China diamond core drill bits para sa nq core barrel