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QL50 179 190mm 5inches high air pressure DTH hammer drill bi Dth Hammer Bits for mining high quality durable

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  • China DTH Bit for 5inch High Air Pressure Rock Drilling ...

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    DTH Hammer, Hammer, Rock Drill manufacturer supplier in China, offering China 4inch High Air Pressure Down The Hole DTH Hammer for Mining Compatible with Bit Shank Cop44, DHD340, Ql40, Mission40, SD4, Broca DTH De Martillo En Fondo Adaptadores Cop 44, T60 T45 Top Hammer Button Bit with Retrac Body and so on.

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