DHD380A 203mm DTH Hole Opener Reamer Drill Bit The DHD380A 203mm DTH Hole Opener Reamer Drill Bit is engineered for efficient hole enlargement and reaming applications in mining, quarrying, water well ...Xem thêm
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DHD380A 203mm DTH Hole Opener Reamer Drill Bit For Mining Quarrying Water Well Rock Drilling High Strength Tungsten Carbide